CYTOLOGY 1. While examining the amniotic fluid collected with the help of amniocentesis (puncture of amniotic membrane) cells with sex chromatin containing nuclei (Barr's bodies) were detected. What does this fact indicate? *A. Development of a female fetus. B. Development of a male fetus. C. Genetic disorders in embryonic development. D. Trisomy. E. Polyploidy. A. Endoplasmic reticulum. B. Mitochondria. C. Polysomes. *D.Lysosome. E. Centrosome. 7. There is a large quantity of carbohydrates in the dietary intake of a human. What structures will be seen in the cytoplasm of hepatocytes? A. Fat drops. *B. Glycogen granules. C. One large fat drop. D. Increase of free ribosomes quantity. E. Lipofuscin inclusions. 2. In a cell the synthesis of histone proteins was artificially blocked. What cell structure will be damaged? A. Nucleolus. *B. Nuclear chromatin. C. Golgi apparatus. D. Cell membrane. E. Nuclear envelope. 8. In the course of a scientific experiment a researcher destroyed a structure of one of cell parts, which broke cell division capacity. Which structure has been affected? A. Microfibrilles. B. Glycocalix. C. Golgi apparatus. *D. Centrosome. E. Mitochondria. 3. A chemical agent influenced cell plasmolemma. Consequently, the cell changed its form. Which layer of plas- molemmma takes part in this process? A. Glycocalyx. *B. Cortical. C. Bilipid. D.Hydrophilic. E. Hydrophobic. 9. Tumor cells culture was acted on with colchicine that blocks the synthesis of tubulinproteins, which form spindle apparatus. What stage of cellular cycle will be affected? A. Go period. B. G1 phase. C. S phase. D.G2 phase. *E. Mitosis. 4. In a histological specimen is observed a human somatic cell in the metaphase of mitotic cell division. How many chromosomes form the metaphase plate, taking into account that every chromosome contains two sisterly chromatids? A. 48. B. 92. C. 23. *D.46. E. 24. 10. Prolonged influence of toxic substances on the organism led to considerable protein synthesis decrease in hepatocytes. Which organelles have suffered of intoxication most of all? *A. Rough endoplasmic reticulum. B. Mitochondria. C. Microtubules. D.Lysosomes. E. Smooth endoplasmic reticulum. 5. A patient with poisoning has been hospitalized. It is detected that hepatic detoxification mechanisms are disordered. Which hepatocytes organelles has primarily caused the process? A. Mitochondria. *B. Smooth endoplasmic reticulum. C. Rough endoplasmic reticulum. D. Golgi apparatus. E. Ribosomes. 11. A ribosomal structure has been affected in a cell. What processes will suffer first of all? *A. Synthesis of protein. B. Synthesis of nucleic acids. C. Synthesis of carbohydrates. D. Synthesis of lipides. E. Synthesis of mineral substances. 6. . Cytochemical investigation has shown high concentration of hydrolytic enzymes in the cytoplasm of cells. The activity of which organelles does this fact indicate? 1 12. If you could mark and count all PMNs (neutrophils) released from the hematopoietic marrow of a normal, healthy individual in one day and then immediately inventory the marked cells free in the blood and in connective tissue, you'd find a deficit: more cells are released than show up in your inventory. The chief explanation for this is: A. Margination. *B. Apoptosis. C. Endomitosis. D. Hemostasis. E. Differentiation. syndrome is characterized by the absence of motions of cellular cilia and flagella. What is molecular mechanisms of this pathology? A. Absence of dynein *B. Excess of dynein C. Absence of tubulin D. Deficiency of spectrins E. Deficiency of hyaluronidase 18. Rheumatic patient has observable symptom such as destruction and disorder of the functions of the cartilage cells. Which of cellular organelles takes active participation in this pathological process? A. Microtubules B. Cytocenter C. Golgi complex D. Ribosomes *E. Lysosomes 13. Experimentally (by action of mutagenic factors) the formation of cellular ribosomal subunits is disturbed. Which metabolic process is spoiled? A. Synthesis of ATP B. Biologic oxidation C. Photosynthesis *D. Biosynthesis of protein E. Biosynthesis of carbohydrates 19. During electron microscopy of the cell spherical vesicles limited by membrane and comprise various hydrolytic enzymes are discovered. It is known, that these organelles provide intracellular digestion and the defense reactions of the cell. Name them. 14. In mitotically dividing cell sister chromatids are at opposite poles of the cell. What stage of mitosis is it? A. Interphase B. Telophase *C. Anaphase D. Metaphase E. Prophase A. Mitochondria B. Endoplasmic reticulum C. Ribosomes D. Cell centers *E. Lysosomes 15. For determining of the human sex sometimes is necessary to research the somatic cells. Which structure of the cell nucleus can provide information about human sex? A. Uncoiled chromatin B. Euchromatin C. Peripheric chromatin *D. Barr bodies E. Facultative chromatin 20. For laboratory investigations a smear of the oral cavity epithelium is taken by spatula. What is the probable method of the cell division in this tissue: *A. Only by mitosis B. Only by amitosis C. Mitosis and amitosis D. Mitosis and endomitosis E. Meiosis and amitosis 16. Mucopolysaccharidosis is the diseases of accumulation in the cell. Due to the absence of enzymes disintegration of mucopolysaccharids is impaired and their accumulation in cell takes place. Pathology of what organelles does occur? A. Mitochondria B. Cough endoplasmic reticulum C. Cell center D. Smooth endoplasmic reticulum *E. Lysosomes 21. Wound surface is formed after extraction of a tooth, where active regeneration has begun. Analyzing functions of cell organelles, determine what of them provide the initial stage of regeneration - wound cleansing from damaged and dead tissues: *A. Cell centers B. Lysosomes C. Mitochondria D. Peroxisomes E. Golgi complex 17. . Patient with genetic Kartagener's syndrome had been hospitalized. Kartagener's 22. . The low level of proteins albumin and fibrinogen is discovered in patient's 2 blood. The activity of what organelle of hepatocyte is diminished? A. Mitochondria B. Lysosomes C. Golgi Complex *D. Rough endoplasmic reticulum E. Smooth endoplasmic reticulum E.Mesenchyme 28. In the slides of all organs there are different types of connective tissue. What is the origin of embryonal development of connective tissues? A.Splanchnotome B.*Mesenchyme C.Ectoderm D.Entoderm E.Intermediate mesoderm 23. . Cells of the laboratory animal are irradiated by X-rays. As a result fragments of albumin appeared in the cytoplasm. What cell organelle utilizes them? A. Golgi complex B. Cell center C. Endoplasmic reticulum D. Ribosomes E. Lysosomes 29. During microscopic examination of embryonic somite is revealed damaged ventromedial portion of it. The disturbance of which embryonic structures may happen? A.Skeletal muscles B.*Skeletal tissues C.Cardiac muscle D.Fibrous connective tissue E.Urogenital tract 24. . Electron microscopy reveals the cell in which nucleolus and nuclear envelope are absent. Chromosomes are freely disposed in cytoplasm, centrioles migrate to poles of the cell. What phase of cell cycle is it? A. Anaphase *B. Prophase C. Metaphase D. Telophase E. Interphase 30. Which is in direct contact with maternal blood in lacunae of the placenta? A.Cells of the cytotrophoblast B.Extraembryonic mesoderni C.Fetal blood vessels D.*Cells of the Syncytiotrophoblast E.Amnioiic cells 25. Patient has the disease of accumulation - galactosemia. Disorder of what cellular structures appeared at this disease? *A. Lysosomes B. Cell center C. Nucleus D. Cell center E. Mitochondria 31. Monozygotic twins arise by A.Fusion of the embryonic blastomeres from two zygotes B.Fertilization of two oocytes by two sperm C.Fertilization of one oocyte by two sperm D.*Division of the inner cell mass (embryoblast) into two embryonic primordia E.Extra cleavage divisions of the zygote induced by die presence of a double chorion EMBRYOLOGY 26. During early gastrulation of embryo somite myotomes were damaged. The subsequent development of which tissue is not possible? A.*Skeletal muscle B.Smooth muscle C.Cartilage D.Lamellar bone E.Cardiac muscle 32. In the developing embryo, the edge of the ectoderm is continuous with the A.Chorion B.*Amnioiic membrane C.Yolk sac lining D.Extraembryonic mesoderm E.Adventitia of the umbilical vessels 33. The capacitation A.takes place after fertilisation B.occurs during ejaculation C.just occurs in few sperm D.*makes the sperm readily to release acrosomal enzymes E.makes the nucleus of the sperm to expand 27. Myocardio-dystrophy is followed by disturbance of cardiomyocytes metabolism. Pathology of what embryonic source does it connect to? A.Endoderm B.Myotome C.*Splanchnopleura D.Ectoderm 3 34. Where and when does fertilization normally occur? A.Ovary, immediately after ovulation B.Vagina, within 12 hours after ovulation C.Internal os of the uterus, within 1 day after ovulation D.*Ampulla of the oviduct, within 1 day after ovulation E.Anterior wall of the uterine body, within 2 days after ovulation 38. A lady of 32 becomes pregnant. The ovum, which was fertilized, was probably derived from an oogonium A.2 weeks ago B.2 months ago C.20 years ago D.*more than 30 years ago E.at any time since puberty 39. Damages of a coroid are revealed in a micropreparation of an eyeball of a fetus. What embryonic material possibly has been damaged during development of an eye? Ectoderm. B.*Mesenchime. C. Entoderm. D. An external layer of an eye glass. E. An internal layer of an eye glass. 35. The most characteristic event that occurs during the third week is A.appearance of endodermal cells B.*formation of the primitive streak C.appearance of the amniotic cavity D.formation of the primitive yolk sac E.all of the above 36. A female patient in the late first trimester of pregnancy exhibits hypertension, vaginal bleeding and edema. A conceptus characterized by multiple fluid-filled vesicles and the absence of a fetus is spontaneously aborted a week later. Chromosome analysis reveals a 46, XX karyotype but all of the chromosomes are of paternal origin. Which of the following tissues failed to develop in this conceptus? A.Cytotrophoblast B.Outer cell mass C.*Epiblast D.Primary villi E.Syncytiotrophoblast 40. Blue asphyxia of a newborn child has been diagnosed. What vessel carrying oxygenated maternal blood to the fetus has been pinched during delivery? A. Chorionic artery. B. Umbilical artery. C. Chorionic vein. D. Umbilical vein. *E. Uterine artery. 41. Two sacs contacting with each other (amniotic and yolk) can be seen in a 10-day embryo specimen. What is the structure in the place of their contact called? A. Amniotic crus. B. Bottom of the amniotic sac. C. Roof of the yolk sac. *D. Embryonic plate. E. Extraembryonic mesoderm. 37. While alcohol may affect many developmental processes (including intrauterine growth retardation) and thus should be avoided throughout pregnancy, the most severe effects appear to be related to its disruption of development of the forebrain. However, women may not be aware of their pregnancy until they have missed the menstrual phase of their next cycle (2-4 weeks after fertilization). This fact along with an understanding of the sensitive period for the mechanism by which alcohol-mediated holoprosencephaly (including fetal alcohol syndrome) occurs, which of the following groups of women should be most strenuously targeted with recommendations to curtail their ingestion of alcohol? A.*Not pregnant; planning a pregnancy or at risk for pregnancy B.Pregnant; (8-12 weeks) C.Pregnant; (12 - 16 weeks) D.Pregnant; (16 - 20 weeks) E.Pregnant; (20 - 24 weeks) 42. . In a histological specimen is observed an extraembryonic organ that represents a bladder connected with intestinal tube. Its wall is covered with epithelium on the inside, on the outside it is formed of embryonic connective tissue. At early stages of embryogenesis it functions as a hematopoietic organ. What organ is this? A. Amnion. B. Allantois. *C. Yolk sac. D. Umbilical cord. E. Uterine artery. 43. At early stages of human embryogenesis there arises a digitiform outgrowth of the ventral wall of the primitive gut rooting itself 4 in the amniotic crus. What is the name of this extraembryonic organ? A. Yolk sac. *B. Allantois. C. Amnion. D. Placenta. E. Umbilical cord. B. Progenesis. C. Neurulation. D. Histogenesis. E. Organogenesis. 49. During the process of a human embryo formation one can observe the rise of a cavity, light little blastomeres at the periphery, and dark big blastomeres at one of the poles. How is the embryo called at this stage of development? *A. Blastocyst. B. Morula. C. Zygote. D.Gastrula. E. Embryonic disk. 44. . In the histological specimen of a human fetus there can be seen one of extraembryonic organs - a bladder linked with intestinal tube. In its wall there are primary germ cells and primary erythrocytes (megaloblasts). Define what this organ is. *A. Yolk sac. B. Allantois. C. Placenta. D. Umbilical cord. E. Amnion. 50. Gonoblasts, sex stem cells, are detected in a 2-3-week-old embryo. Where do these cells differentiate? A. In embryonic endoderm. B. In mesenchyme. C. In embryonic ectoderm. D.In dermatome. *E. In yolk sac. 45. In the course of the experiment on a frog embryo the external embryonic layer ectoderm - has been destroyed. Which of the following morphological structures has not developed henceforth? *A. Epidermis. B. Somites. C. Nephrotome. D. Splanchnotome. E. Myotome. 51. Embryonic implantation into endometrium (uterine mucosa) consists of two phases - adhesion and invasion. The first phase is accompanied by: A. Activation of uterine glands secretion. B. Destruction of endometrium connective tissue. C. Destruction of endometrium epithelial cells. *D. Blastocyst attachment to endometrium surface. E. Suppression of uterine glands secretion. 46. Zygote cell-division finishes after blastula formation. What type of blastula is specific of a human being? A. Discoblastula. B. Celoblastula. *C. Blastocyst. D.Amphiblastula. E. Morula. 52. In a histological specimen there is a hen embryo in the stage of mesoderm differentiation to somites, nephrotomes, and splanchnotome. Of which material will the axial skeleton develop? A. Myotome. B. Dermatome. C. Nephrotome. D. Splanchnotome. *E. Sclerotome. 47. During the third week of embryogenesis the central part of epiblast cells (ectoderm) sags and neurulation process begins. In which direction will the remaining ectodermal cells differentiate? A. Gut. *B. Skin. C. Somites. D. Chord. E. Yolk sac. 53. A histological specimen shows a transverse section of an organ, whose basis is formed of mucous connective tissue, two arteries, and a vein. What organ is it? A. Yolk sac. B. Allantois. *C. Umbilical cord. D. Amnion. 48. In a microscopic specimen of a human embryo, taken after involuntary miscarriage, an embryonic plate has been detected with two cellular layers: endo- and ectoderm. At what stage of embryonal development is this embryo? *A. Gastrulation. 5 E. Placenta. 54. In a specimen an ovocyte at the moment of its fertilization by spermatozoon can be seen. What is the main result of fertilization? *A. Formation of zygote. B. Determining the child's sex. C. Meiosis completion with ovocyte. D. Penetration of ovolemma by spermatozoon. E. Cortical reaction. 60. Monozygotic twins resulting from a complete separation of the ICM into two, noncontiguous cell masses would be expected to have A. separate placentae and amniotic cavities *B. a shared placenta and a common amniotic cavity C. a shared placenta and separate amniotic cavities D. separate placentae but a common amniotic cavity E. a shared umbilical cord 55. An anlage of an organ performing endocrine function is formed of a trophoblast during embryogenesis. What organ is this? *A. Villous chorion (fetal part of placenta). B. Amnion. C. Yolk sac. D.Allantois. E. Umbilical cord. 61. . In embryonic material disorder of endoderm differentiation is detected. Development of what organ is changed? A. Aorta B. Heart C. Kidney *D. Stomach E. Salivary glands 56. A human embryo is comprised of two blastomeres. Name its location under the condition of normal genesis. A. Ovary. B. Cavity of uterus. C. Abdominal cavity. D. Endometrium. *E. Uterine tube. 62. Known, what on 2nd week of human embryogenesis process of gastruiation begins. Which mechanism of gastruiation does human embryo have? A. Epiboly B. Invagination *C. Delamination and immigration D. Immigration and invagination E. Epiboly and invagination 57. Some microorganisms being the reason of infectious diseases can pass through the placental barrier. What structures does it consist of? *A. All the components of tertiary villi. B. Chorion and amnion. C. All the components of secondary villi. D.Allantois, yolk sac. E. Basal lamina of endometrium with decidual cells. 63. Which is in direct contact with maternal blood in lacunae of the placenta? a. Cells of the cytotrophoblast b. Extraembryonic mesoderni c. Fetal blood vessels *d. Cells of the Syncytiotrophoblast e. Amnioiic cells 58. A fetus' umbilical cord is compressed, but blood circulation between the mother and child is preserved. What structures provided this primarily? *A. Mucous connective tissue. B. Residue of allantois. C. Arteries sheath. D. Veins sheath. E. Residue of yolk pedicel. 64. Child inherits from father and mothers antigens of tissue compatibility. Known, that parental antigens expression begins at very early in embryogenesis, but immune system of mother not reject the embryo. Which provisional (temporary) organ the first baffles the abruption of embryo from mother's organism? A. Placenta B. Cytotrophoblast C. Allantois D. Yolk sac *E. Chorion 59. "To be born with a silver spoon in one's mouth" corresponds to Russian "to be born in a shirt". What "shirt" is meant? A. Serous. B. Yolk. *C. Amniotic. D. Chorionic. E. Trophoblastic. 65. In blastocyst, covered by membrane of fertilization, the synthesis of lytic enzymes by the tropoblast cells is genetically inhibited. Which process of embryogenesis can be held up or will not occur? 6 *A: Implantation B. Delamination C. Immigration D. Gastrulation E. Epiboly 71. . Inside female sexual ways spermatozoa move to ovum against fluid current (distant stage of fertilization). What is the name of this directed movement? *A. Chemotaxis B. Termotaxis C. Reotaxis D. Capacitation E. Acrosomal reaction 66. In embryonic material from biopsy the disordered zone of somite, which is situated near endoderm and notochord is discovered. The disorder of the development of which embryonic structures can be awaited in case of continuation of pregnancy? *A. Skeletal striated muscle B. Urinary system C. Skeletal tissues D. Cardiac striated muscle E. Connective tissue of the skin 72. . In slide is presented transverse section of organ which consists of mucous connective tissue, two arteries and vein. What is this ? *A. Umbilical cord B. Allantois C. Yolk-sac D. Amnion E. Placenta 67. In embryonic material disorder of endoderm differentiation is detected. Development of what organ is changed? A. Aorta B. Heart C. Kidney *D. Stomach E. Salivary glands 73. . Placental villi are derived from which one of the following tissues? A Epithelium of endometrial glands B Inner cell mass of the blastocyst C Spiral artries of the endometrium *D Trophoblast of the blastocyst 68. . During the forensic medicine expertise of woman the embryo at early gastrulation stage was found. Name the place of its normal localization. A. Abdominal cavity B. Ampullar segment of the oviduct C. Uterine segment of the oviduct D. Uterine cavity *E. Uterine wall 74. Capacitation of sperm is best described by which one of the following characteristics? (A) It occurs entirely in the epididymis (B) It is not necessary for fertilization to occur *(C) It includes removal of some sperm surface oligosaccharides while in the female reproductive tract (D) It is completed in the vas deferens and seminal vesicle prior to ejaculation (E) It includes removal of some sperm surface oligosaccharides by secretions of the1 prostate gland 69. Gastrulation, or development of germinal layers of embryo, arises by different modes. What is the mode of the human ecto- and endoderm development? *A. Delamination B. Invagination C. Epiboly D. Migration E. Invagination and epiboly 75. In the slides of all organs there are different types of connective tissue. What is the origin of embryonal development of connective tissues? A. Splanchnotome *B. Mesenchyme C. Ectoderm D. Entoderm E. Intermediate mesoderm 70. Myocardiodystrophy is accompanied by disorder of cardiomyocyte metabolism. The disorder of development of which source is connected with this pathology? A. Myotomes *B. Myoepieardiac plate C. Endoderm D Ectoderm E. Mesenchyme 76. During microscopic examination of embryonic somite is revealed damaged ventromedial portion of it. The disturbance of which embryonic structures may happen? *A. Skeletal muscles 7 B. Skeletal tissues C.Cardiac muscle D. Fibrous connective tissue E. Urogenital tract 82. . Pleural fiction rub of a patient with dry pleuritis is being auscultated. What epithelium is damaged? A. Simple columnar. B. Simple cuboidal. *C. Simple squamous. D. Transitional. E. Stratified. EPITHELIAL TISSUES 77. Somatostatin secreted by δ cells of the islets of Langerhans affects the activity of the insulin and glucagon-secreting cells of the islets. This type of secretion is called A.* endocrine B. paracrine C. apocrine D. holocrine E. merocrine 83. Diphtheritic croup arises in consequence of thickening on true vocal folds of fibrin films closely connected with epithelium. With what epithelium is vocal folds mucosa lined? A. Pseudostratified columnar ciliated. B. Stratified squamous keratinized. *C. Stratified squamous non-keratinized. D. Simple squamous. E. Simple cuboidal. 78. After a long inflammation of a nasal cavity mucosa the changes of an epithehum are observed. What epithelium has undergone to changes? A.*Simple pseudostratified B.Stratified cuboidal C.Stratified squamous D.Simple squamous E.Stratified columnar 84. A benign epithelial tumor of trachea of a 56-year-old man is diagnosed. What epithelium is a source of this tumor development? A. Simple pseudostratified transitional. B. Stratified non-keratinized. C. Stratified keratinized. *D. Simple pseudostratified ciliated. E. Simple columnar. 79. Secretory cell has well developed organelles, complex Golgi contains many vacuoles and vesicles. Plasmolemma is without damage. Which type of secretion has this cell? A.Microapocrine B.Macroapocrine C.Holocrine D.Endocrine E.*Merocrine 85. A benign epithelial tumor of visceral pleura of the right lung superior lobe of a 48-year-old man is diagnosed. What epithelium is a source of this tumor development? *A. Simple squamous. B. Stratified non-keratinized. C. Simple pseudostratified ciliated. D. Transitional. E. Stratified keratinized. 80. Under investigation of stomach's mucosa are found many exocrine simple tubular glands. Which exocrine glands are simple? A.*With unbranched excretory ducts B.Unicellular endoepithelial C.With branched excretory ducts D.With branched secretory portion E.With unbranched secretory portion 86. A 15-year-old girl has a chemical burn of the superior surface of tongue. What epithelium is damaged? A. Simple pseudostratified ciliated. B. Simple low columnar. *C. Stratified non-keratinized. D. Transitional. E. Simple squamous. 81. Under examination of biopsy are found exocrine gland with branched excretory duct with several tubular secretory portions. What is the type of the gland? A.*Compound branched tubular B.Simple tubular C.compound branched alveolar D.Simple alveolar E.Compound unbranched tubular 87. A malignant epithelial tumor of the pericardium of a 53-year-old man has been diagnosed. What epithelium is a source of its development? A. Transitional. B. Pseudostratified. *C. Simple squamous. D. Stratified keratinized. E. Stratified non-keratinized. 8 93. Although all histology texts classify endothelial and mesothelial cells as epithelia, many pathologists say these cells are not epithelial. Besides the derivation of these cells from mesoderm, what other reason could pathologists cite to support their view? A. These cells do not border a free surface. B. These cells do not sit on a basal lamina. C. These cells lack intercellular junctions. D. These cells express mostly vimentin rather than keratin intermediate filaments. *E. These cells are arranged as monolayers not multilayers. 88. A patient has changes of epithelium observed after prolonged inflammation of nasal cavity mucosa. What epithelium has changed? A. Stratified squamous. B. Simple squamous. *C. Pseudostratified. D. Stratified cuboidal. E. Stratified columnar. 89. Pleural fiction rub of a patient with dry pleuritis is being auscultated. What epithelium is damaged? A. Simple columnar. B. Simple cuboidal. *C. Simple squamous. D. Transitional. E. Stratified. 94. Many internal epithelia provide an important protective function for the body by producing and exporting: A. Antibodies. B. Extensive extracellular matrix between cells. *C. Mucous. D. Heat shock proteins. E. Microvilli. 90. A 66-year-old man has a malignant epithelial tumor originating from a bronchus of medium calibre diagnosed. What epithelium is a source of this tumor development? A. Stratified keratinized. B. Stratified non-keratinized. *C. Simple pseudostratified ciliated. D.Simple pseudostratified transitional. E. Simple columnar. 95. After long inflammation of a nasal mucosa changes in epithelium are observed in the patient. What type of epithelium is changed? A. Stratified squamous B. Simple squamous *C. Simple pseudostratified D. Stratified cuboidal Э. Stratified columnar 96. The cells purchase morphological, biochemical and functional peculiarities as a result of blocking of the separate components of cellular genome. What is the name this process? A. Capacitation *B. Differentiation C. Reception D. Determination E. Adhesion 91. Experimentally the structures of tight contact between epithelial cells have been disturbed. What function of epithelium will be damaged? A. Secretory. B. Suction. C. Vitamin D producing. *D. Mechanical. E. Excretory. 92. You have seen a section of the epiglottis in lab to study its cartilage. The epithelium on the lingual surface of the epiglottis is stratified squamous. On the laryngeal surface this epithelium normally becomes pseudostratified columnar towards its base at the inlet of the larynx. In some individuals, such as politicians running for office, the epithelium in this basal area is stratified squamous not pseudostratified columnar. The process responsible for the transformation of this epithelium is called: *A. Metaplasia. B. Hyperplasia. C. Adenocarcinoma. D. Epidermolysis. E. Dystrophia. 97. Under examination of biopsy are found exocrine gland with branched excretory duct with several tubular secretory portions. What is the type of the gland? *A Compound branched tubular B. Simple tubular C. compound branched alveolar D. Simple alveolar D. Compound unbranched tubular CONNECTIVE TISSUES 98. A 42-year-old male patient arrives in the emergency room with a rash over much of his face, hands, and arms. He states that he was 9 gardening and pulled out a number of weeds. On questioning the patient, the physician realized that the patient inadvertently came in contact with poison ivy. Which of the following cells is responsible for the release of the pharmacologic agents that caused the rash? A.* Mast cells B. Myofibroblasts C. Difluse neuroendocrine system (DNES) cells D. Pericytes E. Plasma cells 103. During the trainings at the sportsman the lag was injuret. The doctortraumotologist diagnosad break of a tendon. What type of a connective tissue forms this structore? A.Reticular В.Cartilage С.Dense irregular D.Loose fibrous connective E.*Dense regular 104. In the experiment T-lymphocytes of blood were marked. Foreign protein were injected a under a skin of the animal. What cells in connective tissue will contain this mark? A.Macrophages. B.T-helpers C.*Plasmocytes. D.T-killers E.Fibroblasts. 99. A histologic section of connective tissue shows numerous cells containing large numbers of uniformly sized basophilic granules. The cells are ovoid, with a centrally located nucleus, and are aligned along blood vessels. The cells are most likely A.* mast cell B. fibroblasts C. macrophages D. eosinophils E. plasma cells 105. Plasma cell produces specific antibodies to the certain antigen. What blood cells take a part in the increase of plasmocvtes" amount during immune response? A. T-lymphocytes. B.*B-lymphocytes. C. Monocytes. D. Basophils. E. Eosinophils 100. On a tissue specimen in a connective tissue the large cells filled with basophilic metachromatic granules are found out; they contain heparin and histamine. What cells are found out in a preparation? A.*Tissue basophils (mast cells) B. Adipocytes C. lasmocytes D. Fibroblasts E. Macrophages 106. During spinal puncture a neurologist punctuates dura mater. Which tissue forms it? A. Smooth muscle tissue. B. Loose connective tissue. C. *Dense connective tissue. D. Mucous connective tissue. E. Cartilaginous tissue. 101. In a blood smear among leukocytes the spherical cells with segmented nuclei prevail. The line granules in their cytoplasm are stained both acidic and basic dyes. How are these cells called? A.*Neutrophils B. Basophils C. Eosinophils D. Juvenile neutrophils E. Monocytes 107. A patient's blood stem cells were destructed after radiation exposure. Regeneration of what loose connective tissue cells will be affected? A. Adipocytes. B. Pigment cells. C. *Macrophages. D. Pericytes. E. Fibroblasts. 102. One of the reason of hypoxia lessens of the organ's blood supply. Hypoxia activates functions of the fibroblasts. Volume of which elements increase? A.Lymphatic vessels B. Parenchymatous elements C. *Intercellular substance D.Nervous elements E. Microcirculatory blood vessels 108. Histamine has a leading role in the development of the clinical presentations of allergy. Which cells produce histamine? A. B-lymphocytes. B. T-lymphocytes. C: Macrophages. D.*Mast cells. E. Plasma cells. 10 109. With age human skin undergoes changes, which may declare themselves by reduction of skin elasticity. What structures of connective tissue provide skin elasticity most of all? A. Cells of epidermis. B. Ground substance. C. *Collagen and elastic fibers. D. Connective tissue cells. E. Reticular fibers. 114. In experiment one of blood cells was selectively stimulated. As a result the permeability of vessels was considerably improved, an edema and increased coagulation of a blood appeared. What cells were stimulated? A.*Basophils B. Lymphocytes C. Erythrocytes D. Thrombocytes E. Eosinophils 110. One of the rules of surgery is performing sections along the so-called lines of Langer (lines of skin tension). What tissue forms the reticular (the strongest) layer of derma? A. Reticular connective tissue. B. *Dense irregular connective tissue. C. Loose connective tissue. D. Epithelial tissue. E. Dense regular connective tissue. 115. During examination of a blood smear of the patient the cells are found out which make 0,5 % from total of leukocytes, have the Sshaped nucleus, and basophilic granules in cytoplasm. Name these cells. A. Neutrophils B.*Basophils C. Eosinophils D. Monocytes E. Lymphocytes BLOOD AND LYMPH 111. A scientist spent a summer in a remote region of Africa, where he studied exotic plants. On returning to the United States, he developed a cough and fever that would not go away. Laboratory tests revealed that he had contracted a roundworm, Ascaris lumbricoides. Which of the following cells would be expected to be significantly elevated in a differential count of his blood? A.* Eosinophils B. Lymphocytes C. Monocytes D. Erythrocytes E. Neutrophils 116. By results of study of blood maculae on a place of a crime the crime-medical expert has found out, that it is a blood of the woman. To what attributes is it fixed? A. Amount of erythrocytes B. Phenomenon of a poikilocytosis C. Presence of microcytes and macrocytes D. Presence of specific granules in eosinophils E.*Presence of nuclear satellites in neutrophils 117. At research of a tissue specimen of a connective tissue the neutrophils are defined. What function do these cells execute, entering from a blood into a tissue? A.Adjust reductions of smooth myocytes B. Nutritive C. Trophyc D. *Phagocytosis of microorganisms E. Dilate blood vessels 112. Examination of the blood smear of a young patient reveals misshapen red blood cells, and the pathology report indicates hereditary spherocytosis. Defects in which one of the following proteins causes this condition? A.* Spectrin B. Signaling molecules C. G proteins D. Hemoglobin E. Ankyrin 118. The reduced haemoglobin content in a blood is revealed. What function of a blood will be disturbed? A.*Transport of gases B. Transport of hormones C. Maintenance of immunity D. Clotting E. Transport of nutritive substances 113. At the patient with pneumonia the increase of leukocytes in the blood test is revealed. How is this phenomenon called? A.*Leukocytosis B. Anemia C. Leukopenia D. Anisocytosis E. Poikilocytosis 119. In a blood of the patient 14,5% of erythrocytes with diameter more than 8 µm, 15,5% of erythrocytes up to 6 µm, other erythrocytes with diameter 7,1 - 7,9 µm are revealed. How is such phenomenon called? A.Erythropenia 11 B. Erythrocytosis C.*Anisocytosis D. Physiological poikilocytosis E. Pathological poikilocytosis B. Fibroblasts C. B-lymphocytes D. T-lymphocytes E. O-lymphocytes 120. In a blood smear of the patient after influenza 10 % of spherical cells are revealed, which have the large ball-shaped nucleus, basophilic cytoplasm in the form of thin rim around of a nucleus. What condition of a blood is revealed? A.Leukopenia B. Thrombopenia C.*Lymphocytopenia D. Lymphocytosis E. Monocytopenia 125. Patient with third-degree burn was transplanted donor's skin. At 8-th day after transplantation the transplantate became swollen and changed colour. At 11- th day begun destruction. Which cells took place in this process? A.Eosinophils B.*T-lymphocytes C. Basophils D. B-lymphocytes E. Erythrocytes 121. In a blood smear the large (diameter 20 microns) spherical cells with pale basophilic cytoplasm, bean-shaped nucleus are observed, they constitute 20% of a total amount of leukocytes. How is this clinical phenomenon called? A.*Monocytosis B.Reticulocytosis C.Lymphocytosis D.Leukopenia E.Neutrocytosis 126. It is known that plasma cells produce specific antibodies to the antigen. At the injection of antigen the amount of plasmocytes increases. Due to what from the following blood cells the amount of plasmocytes increases? A.*B-lymphocytes B. T-lymphocytes C. Neutrophils D. Eosinophils E. Basophils 122. Al tin-child around of a scratch on a skin the attributes of an inflammation have appeared: a pain, reddening, edema as attributes of immediate hypersensitivity. What blood cells cause these changes? A.*Basophils B.Lymphocytes C.Eosinophils D.Neutrophils E.Monocytes 127. At inspection of the patient the insufficient amount of immunoglobulins was revealed. What cells of immune system produce them? A.*Plasma cells B. T-helper C. Plasmablasts D. T-supressor E. T-killer 128. At the repeated penetration of antigen antibodies are produced in an organism. To the function of what immunocompetent cells is this phenomenon related? A.*Lymphocytes of memory B.T-killers. C.T-suppressors D.Macrophages. E.Dendritic cells. 123. A patient who was given penicillin has an adverse reaction to the antibiotic. Although the reaction is due to the actions of mast cells, the response occurred because mast cells have immunoglobulin E (IgE) receptors in their cell membranes. Which of the following cells produced the IgE decorating the plasma cell's surface? A.* Plasma cells B. T memory cells C. B memory cells D. T helper cells E. T cytotoxic cells 129. In the conditions of experiment in the organism of experimental animal antibodies to tymosins was entered. Differentiation of what cells will be violated first of all? A.*T-lymphocytes B. Monocytes C. B-lymphocytes D. Macrophages E. Plasmocytes. 124. At the patient with primary immunodeficiency the dysfunction of antigenpresentation to immuno-competent cells is revealed. The damaged function of what cells can cause it? A.*Macrophages, monocytes 12 130. In the blood of girl of 16 years, suffering by autoimmune inflammation of thyroid gland, numerous plasma cells are identified. To proliferation and differentiation of what blood cells is the increase of amount of plasmacytes related? A.Mast cells B. T-helpers C.*B-lymphocytes D. T-killers E. T-suppressors B. Basophils. C. Eosinophils. D.Young neutrophils. E. Monocytes. 136. During an experiment one of blood cell populations was selectively stimulated. As a result, vascular permeability considerably increased, which caused perivascular tissue edema and blood coagulation slowing-down. Which cells were stimulated? *A. Basophils. B. Erythrocytes. C. Thrombocytes. D. Eosinophils. E. Lymphocytes. 131. In a blood smear among leukocytes the spherical cells with segmented nuclei prevail. The line granules in their cytoplasm are stained both acidic and basic dyes. How are these cells called? A. *Neutrophils B. Basophils C. Eosinophils D. Juvenile neutrophils E. Monocytes 132. Hemoglobin quantity has decreased in blood. Which function of blood, is disordered in this case? A. Hormones transport. B. *Gases transport. C. Providing immunity. D. Coagulation. E. Nutritive materials transport 133. 20% of spherical, flat, plane, and branched erythrocytes have been detected in the blood of a 26-year-old man. The other erythrocytes are of biconcave discoid shape. How is such phenomenon called? A. Physiological poikilocytosis. *B. Pathological poikilocytosis. C Physiological anisocytosis. D. Pathological anisocytosis. E. Erythrocytosis. 137. 10% of spherical cells of 4.5-7 micrometers size with large spherical nuclei and basophile colored cytoplasm in the form of a narrow thin edge around the nucleus have been detected in the blood smear of a patient who had had , flu. What condition of blood do the cells characterize? A. Thrombopenia. *B. Lymphocytopenia. C. Leukopenia. D. Lymphocytosis. E. Monocytopenia. 138. A patient, a nurse by profession, complains of increasing hands' skin itching and appearance of vesicles filled with liquid after a watch in hospital, namely after injecting streptomycin to patients. During the leave disease signs disappear. The increased quantity of which cells can be detected by means of blood analysis? *A. Neutrophilic leukocytes. B. Basophilic leukocytes. C. Monocytes. D.Eosinophilic leukocytes. E. Lymphocytes. 134. A large cell with low-basophilic cytoplasm and bean-like nucleus is observed in a peripheral blood smear. The cell is the largest among other ones in this specimen. What is this cell? A. Plasma cell. B. Macrophage. *C. Monocyte. D.Middle lymphocyte. E. Small lymphocyte. 139. Helminthic invasion of a 6-year-old child is diagnosed. What changes of the leukocytic formula should be expected? A. Increase of lymphocytes quantity. B. Increase of neutrophiles quantity. C. Decrease of eosinophils quantity. D. Increase of monocytes quantity. E. * Increase of eosinophils quantity. 135. In a peripheral blood smear some round cells with segmented nuclei prevail among leukocytes. Minute granulosity in their cytoplasm is dyed both with acid and basic coloring agents. How are these cells called? *A. Segmentonuclear neutrophils. 140. After conducting analysis a laboratory doctor came to an additional conclusion that the blood belongs to a woman. Features of what blood elements ground such conclusion? 13 A. Erythrocytes. B. *Neutrophilic leukocytes. C. Lymphocytes. D. Monocytes. E. Basophilic leukocytes. 146. It is known that plasma cells produce specific antibodies to this antigen. After antigen introduction the quantity of plasma cells is increasing. What cells differentiate into plasma cells? *A. B-lymphocytes. B. T-lymphocytes. C. Neutrophils. D. Eosinophils. E. Basophils. 141. By the results of the analysis of blood spots in the site of a crime a medical expert has detected that it was woman's blood. By what signs is it established? A. Poikilocytosis. B. Microcytes and macrocytes. C. *Satellites of nuclei in neutrophiles. D. Specific granules in eosinophils. E. Erythrocytes quantity. 147. Histological examination of a 35year-old man's red bone marrow punctuate has shown considerable decrease of megakaryocytes quantity. What changes of peripheral blood accompany this? A. Leukocytosis. *B. Thrombocytopenia. C. Thrombocytosis. D. Granulocytopenia. E. Leukopenia. 142. A child has signs of inflammation around a scratch on the skin: pain, reddening, edema - as a manifestation of immediate hypersensitivity reaction. What blood cells predetermine these changes? A. Lymphocytes. B. Eosinophils. C. Neutrophiles. D.*Basophiles. E. Monocytes. 148. NADPH oxidase catalyzes the formation of superoxide radicals, reactive molecules that are also substrates for the synthesis of hydrogen peroxide. People born with inherited defects in NADPH oxidase activity suffer from numerous, long lasting bacterial infections. This is likely due to reduced effectiveness of their: A. Monocytes. B. B cells. C. *Neutrophils. D. Eosinophils. E. Basophils. 143. The research of a specimen of connective tissue has detected neutrophiles. How do these cells function penetrating from blood into tissues? A. Of support. B. Trophic. C. *Phagocytosis of microorganisms. D. Regulate contraction of smooth myocytes. E. Dilate blood vessels. 149. Eosinophils kill the larval forms of parasites, such as schistosomes, by: A. Phagocytosis and internal destruction. B. Release of histamine. C. *Release of major basic protein. D. Release of antibodies. E. Release of complement factors. 144. Megalocytes may appear in human peripheral blood. When is their quantity in blood normal? *A. During embryonic period. B. Up to 1 year old. C. From 1 year to 30 years. D. During elderly period. E. During pregnancy. 150. The orthochromatophilic erythroblast is so-named for its "normal," "correct," or mature eosinophilically stained cytoplasm. However, as you saw in the lab, the cytoplasm of these cells is usually darker, more basophilic than that of mature RBCs. The reason for this that the "orthos" contain: A. Spectrin. B. Lysosomes. C. *Polysomes. D. Oxyhemoglobin. E. Granules loaded with histamine and heparin. 145. In a peripheral blood smear some round cells with segmented nuclei prevail among leukocytes. Minute granulosity in their cytoplasm is dyed both with acid and basic coloring agents. How are these cells called? *A. Segmentonuclear neutrophils. B. Basophils. C. Eosinophils. D.Young neutrophils. E. Monocytes. 14 151. One function of the thymus is to remove potentially self-reactive T cells early in life, but autoimmune diseases are occasionally seen in older individuals. The process of clonal anergy could logically account for some of this autoimmunity because: A. *T cells with receptors to self-antigens are still present by this process. B. Clonal anergy occurs outside the thymus. C. The involution of the thymus renders it inoperative in later life. D. T cells have short life spans. E. Hassall's corpuscles increase in size in older individuals. B. Lymphocytopoiesis C. Neutrophilocytopoiesis D. Eosinophilocytopoiesis E. Basophilocytopoiesis 156. Histological research of punctate of red bone marrow took place at the examination of patient of 35 years. The considerable decrease of amount of megacaryocytes was exposed. What changes of peripheral blood are it accompanied? A. Increase of amount of leucocytes B.*Decrease of amount of thrombocytes C. Increase of amount of thrombocytes D. Decrease of amount of granulocytes. E. Decrease of amount of leucocytes. 152. . Preparations of two smearses are given out to the student. In one smears all field of view show erythrocytes, in the second – blood cells of different degree of maturation. What are these smearses? A. Frog blood and human blood. B. Blood and lymph. C. *Blood and smears of human red bone marrow. D. Blood and smears of yellow bone marrow. E. Smears of yellow and red bone marrow 153. Plasma cell produces specific antibodies to the certain antigen. What blood cells take a part in the increase of plasmocytes’ amount during immune response? A. T-lymphocytes. B.* B-lymphocytes. C. Monocytes. D. Basophils. E. Eosinophils 157. Accumulations of the giant cells, located in the close connection with sinusoidal capillaries, are found in micropreparation of red bone marrow of man. What blood cells appear from these cells? A. Erythrocytes B.*Thrombocytes C. Leucocytes D. Monocytes E. Lymphocytes 158. In the red bone marrow during postembryonal hemopoiesis in the cells of a diferon cytoplasmic basophilia gradually decreases, oxyphilia increases, nucleus is pushed out. What type of hemopoiesis has these morphologic changes? *A. Erythropoiesis. B. Lymphopoiesis. C. Neutrophilopoiesis. D. Eosinophilopoiesis. E. Basophilopoiesis. HAEMOPOIESIS 154. In a smear of normal red bone marrow, a cells is observed to be obviously larger than an erythrocyte; to have a relatively large, unintended, euchromatic nucleus; and to have a scattering of purple-staining granules in the cytoplasm. The cell is a A.* promyelocyte B. Basophilic erythroblast C. neutrophilic metamyelocyte D. normoblast E. eosinophilic myelocyte 159. Responding to the same antigen on recurring exposure specific antibodies are produced by lymphatic system cells. With the function of what cells is this phenomenon connected? *A. B-memory cells. B. T-killers. C. T-suppressors. D. Macrophages. E. Dendritic cells. 155. In red bone marrow during post embryonic hemopoiesis in the cells of one of differones basophilia of cytoplasm gradually decreases and acidophilia increases, a nucleus is pushed out. What type of hemopoiesis these morphological changes characterize? 160. A mutation produces a unique DNA sequence that is detected in a patient's eosinophils. This sequence is not detected in fibroblasts or epidermal cells taken from the patient, indicating that the mutation was not inherited from the parents, but arose sometime after fertilization. You want to test the hypothesis that this mutation occurred in a CFU-S cell. Verification of the A.*Erithrocytopoiesis 15 hypothesis would be provided by observing the mutation in what other cell? A. *PMNs. B. Proerythroblasts. C. Megakaryocytes. D. Monoblasts. E. T cells. C. *Increase of quantity of thrombocytes D. Decrease of quantity of granulocytes E. Decrease of quantity of leucocytes SKELETAL CONNECTIVE TISSUES 165. Synovial fluids of normal joints are usually devoid of collagen. It has been demonstrated that patients suffering from rheumatoid diseases will have different types of collagen in their synovial fluid, depending on the tissue being damaged. If a patient has type II collagen in his synovial joint, which of the following tissues is being eroded? A.* Articular cartilage B. Vascular endothelium C. Compact bone D. Vascular smooth muscle E. Synovial membrane 161. The GEMM hematopoietic stem cell can give rise to three different, more restricted stem cells in hematopoietic marrow. The relative frequencies with which the three are produced are influenced most directly by: A. The cytokines present in the marrow. B. The relative balance of mature cells in the marrow. C. *The relative balance of mature cells in the blood. D. Random genetic events. E. Adventitial veticular cells. 166. On a tissue specimen of a cartilage the isogenic groups of cells are taped. What cells are initial in formation of these groups? A.*Chondrocytes B. Prechondroblasts C. Chondroblasts D. Fibroblast E. Osteoblasts 162. Occasionally, reticulocytes are produced containing small chromatin fragments due to incomplete extrusion of the nucleus from the orthochromatophilic erythroblast. These dense lumps (called Howell-Jolly bodies) will impede the flexibility of the resulting RBC's and such cells could plug up capillaries. This situation is thought to be corrected by: *A. Digestion of the fragments by DNase in the cytoplasm of RBC's. B. Destruction of the RBCs by NK cells due to binding of anti-DNA antibodies. C. Destruction of the RBCs by macrophages as the RBC's reenter splenic sinuses from splenic cords. D. Removal of the nuclear fragment by macrophages as the RBC's reenter splenic sinuses from splenic cords. E. Removal of the fragments by adventitial reticular cells in the bone marrow. 167. During electron-microscopic examination of a hyaline cartilage the cells with well advanced rough ER, Golgi apparatus are found out. What function do these cells execute? A.Destruction of intercellular substance of a cartilage B. Deposition of a glycogen C. Nutrition of a tissue D. Deposition of lipid E.*Formation of intercellular substance 168. Which tissue will have damaged underarthritis, when interfacial slip of the joint are broken state? A.Reticular tissue B. Fibrocartilage C. Bone tissue D. Lose connective tissue E.*Hyaline cartilage 169. X-ray examination shows that child has a fracture of long bone diaphysis What tissue is damaged at that case? A.Cancellous bone B. Woven bone C. Spongy bone D.*Compact bone Dense regular connective tissue 163. The newborn child has underdeveloped thymus. What type of hemopoiesis is affected? A. Granulocytopoiesis B. Monocytopoiesis C. Erythropoiesis D*. Lymphopoiesis Е. Megakaryocytopoiesis 164. 75. Significant decrease of quantity of megakaryocytes is revealed during histological research of red bone marrow puncate of the patient, 35 years. By what changes of peripheral blood is this accompanied ? A. Increase of quantity of leucocytes B. Decrease of quantity of thrombocytes 16 170. Articular cartilage, as is known, has no perichondrium. What type of cartilage growth is used during its regeneration? A.Appositional and interstitial B.Appositional C.By sheath formation D.*Interstitial E.Does not regenerate 176. Isogeneic groups of cells are being detected in a histological specimen of cartilaginous tissue. Which cells are initial in the organization of these groups? A. Chondroblasts. *B. Chondrocytes of the I type. C. Prechondroblasts. D. Chondrocytes of the II type. E. Chondrocytes of the III type. 171. In the slide was found tissue with isogenous groups of cells. In the intercellular substance we can't see fibrillar structures. What is the name of this tissue? A.Epithelial tissue B.Smooth muscle tissue C.Fibrocatilage D.*Hyaline cartilage E.Bone tissue 177. Articular cartilages are known not to have perichondrium. What growth of these cartilages is observed during regeneration? *A. Interstitial. B. Appositional. C. By imposition. D. Appositional and interstitial. E. Does not regenerate. 172. Structure of hyaline cartilage is changed under chondrodysthrophy. What is the function of chondroblasts and chondrocytes? A.*Synthesis of intercellular substance B.Deposition of glycogen C.Nourishment of tissue D.Deposition of fat E.Destruction of intercellular substance 178. A patient has excessive resorption of bones detected. With the increased activity of what osteal tissue cells is it connected? A. Osteoblasts. B. Osteoblasts and osteoclasts. C. Osteocytes and osteoblasts. *D. Osteoclasts. E. Osteocytes. 173. A child has bone abnormalities like softness and distortion of long bones. What basic step in bone formation is disturbed? A.Perichondral ossification0 B.Mesenchymal condensation C.Synthesis of matrix D.Replacement by lamellar bone E.*Ossification 179. During the direct histogenesis of tubular bones osteal tissue a plate, which further will provide the growth of bones lengthwise, is formed between epiphysial and diaphyseal centres of ossification. How is this structure called? A. Osseous cuff. *B. Metaepyphysial plate. C. Bone lamella. D. Osteon. E. A layer of internal general plates. 174. Isogeneic groups of cells are being detected in a histological specimen of cartilaginous tissue. Which cells are initial in the organization of these groups? A. Chondroblasts. B. *Chondrocytes of the I type. C. Prechondroblasts. D. Chondrocytes of the II type. E. Chondrocytes of the III type. 180. On your most recent visit to the local piercing parlor, you have several new holes pierced along the auricle of your ear. Arrange in order the constituents encountered by the needle as it passes through your skin and into the cartilage in your ear. 175. A doctor paid attention to the reinforced resorption of osteal tissue in separate parts when analysing a patient's roentgenogram. What cells' increased activity can this phenomenon be connected with? A. Osteoclasts. B. Chondroblasts. C. Osteocytes. D. Osteoblasts. E. Chondrocytes. 1: Chrondroblasts 2: Chrondocytes 3: Chondrogenic layer of the perichondrium 4: Fibrous layer of the perichondrium 5: Interterritorial matrix 6: Territorial matrix A. 4 - 3 - 1 - 5 - 6 - 2 B. 4 - 1 - 3 - 6 - 5 - 2 C. 4 - 6 - 5 - 1 - 3 - 2 17 D. 4 - 3 - 1 - 6 - 5 - 2 *E. 4 - 3 - 5 - 1 - 6 - 2 micropreparation of the heart. What is a function of these cells? A.Regenerative B. Conducting of nervous impulses C. Endocrine D. Protective E.*Contraction of the heart 181. As a pin passes into an epiphyseal plate from the diaphysis to the epiphysis the following regions or zones will be encountered in which sequence: 1 = zone of resting cartilage 2 = zone of hypertrophied cartilage 3 = zone of calcified cartilage 4 = zone of proliferating cartilage 5 = zone of osteoid deposition (zone of ossification). A. 1-2-3-4-5 B. 5-4-3-2-1 C. 5-3-2-4-1 D. 4-5-1-3-2 E. 3-2-4-5-1 *F. 1-4-2-3-5 186. The regeneration of skeletal muscles after injury is possible. What cells from listed below are responsible for their regeneration? A.*Satellite cells B.Myoblasts C.Myofibroblasts D.Fibroblasts E.Myoepithelial cells 187. A patient with injuries of legs muscles has been admitted to a traumatology center. What cells make muscular fibers reparative regeneration possible? A. *Satellite cells. B. Myoblasts. C. Myofibroblasts. D. Fibroblasts. E. Myoepithelial cells. 182. You have generated a new mutant mouse. The embryos of this mouse look normal but as the pups mature you notice that the bones in its limbs are short, but have normal diameter. Interestingly, the cranium matures normally. What process appears to be defective in this mutant? A. Appositional growth of cartilage *B. Intramembranous growth of cartilage C. Intramembranous ossification D. Endochondral ossification E. Intralamellar ossification 188. The main structural unit of the tissue on histological specimen is fibers consisting of simplast and satellitocytes covered with common basic membrane. Which tissue is this structure characteristic of? A. *Skeletal striated muscle tissue. B. Smooth muscle tissue. C. Cardiac muscle tissue. D. Loose connective tissue. E. Reticular connective tissue. 183. In result of chondrodysplasia the fibrous cartilage is damaged. Where is it located? A. In an auricle B. In trachea *C. In intervertebral disks D. In a larynx E. In bronchus 189. Destruction of thin myofilaments is observed during the research of a striated muscle fiber after the action of hydrolytic ferments. Which structures have been damaged? A. *Actin myofilaments. B. Tonofibrils. C. T-systems. D. Sarcoplasmic reticulum. E. Myosin myofilaments. MUSCULAR TISSUES 184. A herpetologist is bitten by a poisonous snake and is brought into the emergency room with progressive muscle paralysis. The venom is probably incapacitating his A.* acetylcholine receptors B. Na+ channels C. Ca2+ channels D. phospholipids E. spectrin 190. In a figure a structural unit of striated muscles myofibrils - sarcomere, which is placed between two neighboring Z lines, is schematically represented. How will the H-zone of the sarcomere change at maximum reduction? A. Does not change. B.* Disappears. C. Increases by 2 times. 185. Cells of rectangular shape by a size 50-120 urn with the centrally located nucleus, well developed myofibrils, connected with one another by intercalated disk are defined in the 18 D. Decreases by 2 times. E. Takes up all sarcomere. spreading of a nerve impulse along the nerve cell. What frame does this function execute? A.Chromophilic substance B.Neurofibril C.Synapse D.Mitochondrion E.*Nerve cell membrane 191. You have gone to the gym to relieve the stress of studying for your Histology exam. In your workout you tear a muscle, but you are not concerned because you know the muscle will heal. What cells are most directly responsible for repair of your injured muscle? A. *Satellite cells B. Schwann cells C. Fibroblasts D. Macrophages E. Endomysial cells 196. During injury of a brain neuroglial cells are damaged. What type of neuroglial cells is predominantly arranged in the grey matter of the brain? A.Oligodendrocytes B.Microglia C.*Protoplasmic astrocytes D.Fibrous astrocytes E.Schwann cells 192. You have just received your free flu shot in a skeletal muscle of your arm. Arrange in order the structures that the needle passed through as it penetrated your muscle. 1 = epimysium 2 = myofibril 3 = perimysium 4 = sarcoplasmic reticulum 5 = endomysium 6 = sarcolemma 197. During a conditional experiment the action of a toxic substance enhances the mechanism of nerve impulse transfer. What structure provides this function? A. Neurofibril. B.* Neurolemma. C. Synapse. D. Mitochondrion. E. Nissl's substance. A. 1 - 2 - 3 - 4 - 5 - 6 B. 1 - 6 - 3 - 2 - 4 - 5 C. 1 - 5 - 3 - 6 - 4 - 2 *D. 1 - 3 - 5 - 6 - 4 - 2 E. 1 - 3 - 5 - 4 - 6 - 2 198. . Some degenerative diseases of nervous system are followed by pathology of cells, which provide myelinisation of nerve fibers in peripheral nervous system. What is the name of these cells? A. Microglia B. *Oligodendroglia C. Protoplasmic astrocytes D. Ependima E. Bipolar neurons 193. The regeneration of skeletal muscles after injury is possible. What cells from listed below are responsible for their regeneration? A. Satellite cells B. Myoblasts C. Myofibroblasts D. Fibroblasts E. Myoepithelial cells 199. At a patient, which suffers by the poliomyelitis with defeat of a spinal cord the function of skeletal muscles is disturbed. With destruction of what neurons it is possible to explain it? A. Interneurons. B. Pseudounipolar. C. *Motorneurons. D. Pseudounipolar and interneurons. E. Interneurons and motorneurons. NERVOUS TISSUES 194. The patient has degenerative pathology of the spinal cord during which the neurons with 4-5 processes are damaged. What type of neurons do they belong to? A.Unipolar B. Monopolar C. Bipolar D. Pseudounipolar E.*Multipolar NERVOUS SYSTEM 1. In time of a spinocerebral puncture the neuropathologist punctures dura mater. What tissue forms it? A.Mucous B. Smooth muscular 195. In conditional experiment the action of toxic substance breaks the mechanism of 19 C. Loose connective D.*Dence connective E. Cartilage 7. At a patient, which suffers by the poliomyelitis with defeat of a spinal cord the function of skeletal muscles is disturbed. With destruction of what neurons it is possible to explain it? A.Interneurons. B. Pseudounipolar. C.*Motorneurons. D. Pseudounipolar and interneurons. E. Interneurons and motorneurons. 2. During biopsy examination of material with degenerative pathology of nervous system, the cells are from neural crest origin were studied. What are they? A.Astrocytes B. Brain cortex neufons C. Cerebellum neurons D. Neurons of spinal cord E.*Neurons of sympathetic ganglion 8. The organ of nervous system which consists of grey and white matter is presented in a histologic preparation. The grey matter is located on periphery. Neurons in it form three layers: molecular, ganglionar and granular. What is this organ? A. Spinal cord. B.*Cerebellum. C. Midbrain. D. Cerebrum. E. Medulla. 3. Some degenerative diseases of nervous system are followed by pathology of cells, which provide myelinisation of nerve fibers in peripheral nervous system. What is the name of these cells? A. Microglia B.*Oligodendroglia C. Protoplasmic astrocytes D. Ependima E. Bipolar neurons 9. The alcoholic intoxication, as a rule, is accompanied by infringement of coordination of movement and balance owing to damage of structural elements of a cerebellum. What function of cells of a cerebellum is disturbed first of all? A. Basket cells. B.*Cells of Purkinje. C. Piramidal cells. D. Star-shaped cells. E. Granular cells. 4. In a histologic section of spinal cord, rows of nuclei are seen aligned between myelinated axons in the white matter. The observed nuclei are evidence of which cell type? A.* Oligodendrocytes B. Astrocytes C. Satellite cells D. Schwann cells E. Microglia 5. Epilepsy may be a result of pathologic growth of neuroglia cells of the brain temporal lobe. What cells from listed bellow belong to neuroglia? A.Neurocytes B.Multipolar C.Unopolar D.*Oligodendrocytes E.Betz cells (Pyramidal neurons) 10. A specimen, dyed by the method of silver impregnation, is being investigated. Pyramidal cells of different size are seen in this specimen. Short processes come off their tips and lateral surfaces; one long process comes off the base of the cells. Name the specimen. A. Cortex of the cerebellum. B. Spiral organ of inner ear. C. Retina of the eye. *D. Cerebral cortex. E. Spinal ganglion. 6. Magnetic resonance imaging (MRI) of a patient with ataxia (disruption of coordination) reveals reductions in the size of cervical dorsal root ganglia (DRG) in addition to apparent cerebellar anomalies. Disruption of development of which of the following tissues would most likely explain the abnormal DRGs in this patient? A.Marginal layer B.Ventricular layer C.*Neural crest cells D.Ependymal cells E.Somatic motor columns 11. A patient with poliomyelitis has the damage of the spinal cord and the dysfunction of skeletal muscles. It may be explained by the destruction of some neurons. Name these neurons. A. Associative. B. Pseudouni polar. *C. Motor. D.Pseudouni polar and associative. E. Associative and motor. 20 ear cavity E. Ossicles in the middle ear 12. A traumatic injury of nerve fibers is accompanied by axons damage, lysis of myelin. What nerve structures take part in myelin reconstruction during regeneration? A. Perineurium. B. Ependimocytes. *C. Neurolemmocytes. D.Endoneurium. E. Astrocytes. 16. The girl, 15 years, has a corrosive burn of the surface of tongue. What epithelium thus is damaged? A.Transitional B.Pseudostratified ciliated C.Simple columnar D.*Stratified nonkeratinized E.Simple squamous 17. The structure, which has biconvex shape, connected with ciliary body by means of zonular fibres and is covered by a transparent capsule, is visible in a histological preparation of an eyeball. What is this structure? A.Sclera. B. Vitreous body. C. Ciliary body. D. Cornea. E.*Lens. 13. During injury of a brain neuroglial cells are damaged. What type of neuroglial cells is predominantly arranged in the grey matter of the brain? A. Oligodendrocytes B. Microglia C. *Protoplasmic astrocytes D. Fibrous astrocytes E. Schwann cells 18. Damages of a coroid are revealed in a micropreparation of an eyeball of a fetus What embryonic material possibly has been damaged during development of an eye? A. Ectoderm. B.*Mesenchime C. Entoderm D. An external layer of an eye glass E. An internal layer of an eye glass SENSE ORGANS 14. Michael experienced visual problems within 1 day after being hit in the head with a ball during a soccer game. He saw large floaters and noticed that a dark film was blocking part of the vision in his right eye. An examination by an ophthalmologist revealed that he had a detached retina, and emergency surgery was done to save the vision in that eye. Which of the following retinal layers were separated from one another to cause Michael's condition? A.* Layer 2 from layer 3 B. Layer 1 from layer 2 C. Layer 3 from layer 4 D. Layer 5 from layer 6 E. Layer 6 from layer 7 19. Damages of vascular membrane are detected in the histological specimen of a fetus' eyeball. What embryonic material was probably damaged during the development of the eye? A. Ectoderm. *B. Mesenchyme. C. Entoderm. D. Outer layer of the eyeball. E. Internal layer of the eyeball. 15. A 45-year-old musician who played guitar for 26 years in a rock band noticed he was having difficulty hearing. An otolaryngologist confirmed his loss of hearing and associated it with prolonged exposure to loud sounds. Which of the following structures would show degenerative changes that would account for this man's hearing loss? A.*Hair cells of the organ of Corti B. The epithelium lining the inner portion of the tympanic membrane C. Hair cells in the ampullae of the semicircular ducts D. The auditory (eustachian) tube extending to the middle 20. Underdeveloped epithelium of cornea is observed in the histological specimen of a fetus' eyeball. A part of what embryonal layer was probably affected in the process of embryogenesis? A. Mesoderm. B. Entoderm. *C. Ectoderm. D. Outer layer of the eyeball. E. Internal layer of the eyeball. 21. As a result of the laser correction of vision stratified squamous epithelium of cornea 21 decays on the incision line. What cells provide the regeneration of this epithelium? *A. Basal epithelial cells. B. Spinosum epithelial cells. C. Fibroblasts. D.Fibrocytes. E. Lymphocytes. C. Multipolar neurons. *D.Cones neurons. E. Horizontal neurons. 27. A 14-year-old patient has twilight vision impairment. What vitamin deficit takes place in the organism? A. B12. B. B1. C. B6. D.C. *E. A. 22. A patient has taken high doses of streptomycin and consequently became deaf. The function of what cells of the inner ear was damaged in this case? A. Pillar. B. Phalangal. *C. Hair. D.Deiters'. E. Connective tissue. 28. The ciliary body of a patient is damaged. The function of what eye apparatus suffers? A. Light-sensitive. B. Light-conductive. *C. Accommodation. D. Protective. E. Trophic. 23. Twilight vision disorder occurs as a result of vitamin A deficit. Name the cells, which perform this photoreceptor function. A. Multipolar neurons. B. Horizontal neurons. C. Cones neurosensory cells. *D.Rod neurosensory cells. E. Ganglionic nerve cells. 29. In a histological specimen a structure of eyeball wall is detected; blood vessels are absent in this structure. What structure is characterized by this morphologic sign? A. Ciliar body. *B. Cornea. C. Choroid. D.Iris. E. Retina. 24. A child (5 years old) after a chemical burn of the lateral surface of tongue has ageusia in this site. It is connected with the destruction of gustatory sensory cells. What cellular structure takes part in stimulation perception? A. Lateral su rface. *B. Microvilli on the apical surface. C. Microvilli on the basal surface. D. Nucleus. E. Basement membrane. 30. . In an electronic micrograph of a sense organ hair cells are seen, on their apical part there are short microvilli -stereocilii and a polarlocated kinocilium. Of what sensory organ are such cells typical? *A. Organ of vestibular. B. Organ of vision. C. Olfactory organ. D. Organ of hearing. E. Organ of taste. 25. A boxer has disturbance in smell after a trauma of the nose. The damage of what cells may cause the loss of smell? *A. Neurosensory. B. Supporting epithelial cells. C. Basal epithelial cells. D. Ciliary epithelial cells. E. Microvillous epithelial cells. 31. Taste buds located near the tip (anterior portion) of the tongue are usually associated with what structure? A. Circumvallate papillae. B. Filiform papillae. C. *Fungiform papillae. D. Sublingual glands. E. Meissner's plexi. 26. During examination an oculist has detected that the patient does not distinguish blue and green colors, but perceives other colors normally. It may be connected with the function damage of some structures of retina. Name these structures. A. Amacrine neurons. B. Rod neurons. 32. The patient who used the big dozes of streptomycin has lost hearing. The function of what cells of an internal ear is damaged in this case? A. Pillar cells 22 B. Phalangeal cells C. Hair cells D. Cells of Deiters E. Connective tissue cells 38. A vessel, the wall of which consists of endothelium, basal membrane and loose connective tissue, is visible in histological section. What is this vessel? A.Vein of muscular type B. Artery C.*Vein of fibrotype D. Hemocapillary E. Lymphcapillary 33. A histological section of an eyeball wall shows the structure in which blood vessels are absent. What structure is characterized by this morphological attribute? A. Ciliary body *B. Cornea C. Choroid D. Iris E. Retina 39. The organ of the cardiovascular system consists of cells connected with one another through intercalated disks. What organ is this? A. Vein of muscular type B.*Heart C. Artery of the muscular-elastic type D. Artery of muscular type E. Aorta CARDIO-VASCULAR SYSTEM 34. The blood-brain barrier is thought to occur because capillaries in the central nervous system (CNS) have which of the following characteristics? A.* A few pinocytic vesicles B. Discontinuous basal lamina C. Fenestrae with diaphragms D. Fenestrae without diaphragms E. No basement membrane 40. Arterioles execute an important role in blood supply of organs" functional units. What from the folloving structures of arteriole execute this function? A. Outer elastic membrane B.*Myocytes C. Inner clastic membrane D. Special cells of connective tissue E. Endotheliocytes 35. After heart attack at the patient the morphological integrity of a wall of heart was restored. At the expense of what tissue the regeneration was carried out? A.*Connective B. Striated muscular C. Nervous D. Smooth muscular E. Epithelial 41. In microscopic section of the organ of the cardiovascular system is presented. One of its layers consists of fibers, which form anastomosis between itself. They are formed of the cells connected through intercalated disks. What is this organ? A.Artery of elastic type B. Vein of muscular type C. Artery of muscular type D.*Heart E.Arteriole 36. At the 53 years patient a malignant epithelial tumor of pericardium is diagnosed. What epithelium is a source of its development? A.*Simple squamous B. Transitional C. Simple pseudostratified ciliated D. Stratified keratinized E. Stratified nonkeratinized 42. A capillary is characterized by presence of fenestrated endothelium and porous basal membrane. Name the type of capillary. A.Visceral B. Somatic C.*Sinusoidal D. Lymphatic E. Lacunas 37. In the pericardial cavity of the patient with exudative pericarditis was found large amount of exudate. Malfunction of functional activity which cells are the reason of that condition? A.Endotheliocytes B. Fibroblasts C. Typical cardiomyocytes D. Atypical cardiomyocytes E.*Mesotheliocytes 43. The walls of vessels have pretty considerable morphological divergences in the structure of tunica media. Than appearance of specific features in a structure of this layer in different vessels is caused? A. Influence of endocrine organs B.Regulation of CNS 23 C. Inductive influence of neurons of autonomic ganglions D.*Hemodinamic conditions components did the regeneration of cardiac wall take place due to? A. Intracellular regeneration of contractile cardyomyocytes. B.*Proliferation of cages of connecting tissues. C. Proliferation of contractile cardyomyocytes. D. Proliferation of conducting cardyomyocytes. E. Proliferation of contractile and conducting cardyomyocytes. 44. Arteries of large caliber widen itself during a systole and return into the initial state during a diastole, providing stability of blood stream. The presence of what walls elements of vessel explain it? A.*Elastic fibers B. Muscular fibers C. Reticular fibers D. Collagen fibers E. Numerous fibroblasts 50. In histological micropreparation of vessel inner and outer elastic membranes are well expressed, a lot of myocytes are in medulla. What is this vessel? A.Artery of elastic type. B. Artery of the mixed type. C. Vein of muscular type. D.*Artery of muscular ty pe. E. Extraorganic lymph vessel. 45. An epithelium covers tunica intima of vessel from within. Which one? A.Pseudostratified B. Mesothelium C. Epidermis D. Transitional E.*Endothelium 51. In the wall of blood vessels and wall of heart a some tunics (layers) are distinguished. What is the layer of heart according to histogenesis and tissue composition is identical to the wall of vessels? A. Myocardium. B.*Endocardium. C. Pericardium. D. Epicardium. E. Epicardium and myocardium. 46. On the cardiac muscle electrophotograph cells with processes are visible, with small amount of organelles, but good developed rough endoplasmic reticulum, secretory granules. Name these cells. A.Pace maker cells B.Ventricle typical cardiomyocytes C.*Atrium secretory cardiomyocytes D.Atrium contractile cardiomyocytes E.Purkinje cells 52. After myocardial infarction a patient's morphological heart wall integrity was regenerated. Owing to what tissues did the regeneration take place? A. Nerve. B. Smooth muscle. C. Striated muscle. D. Epithelial. *E. Connective. 47. Disruption in development of myocardial ventricles is diagnosed at new-born. To disruption in development of what embryonic layer this pathology is related? A.Mesenchyme. B. Parietal splanchnopleura. C. Endoderm. D. Ectoderm. E.*Myoepicardial plates. 53. In a red bone marrow specimen numerous capillaries are detected, through their wall mature blood elements enter blood circulation. What is the type of these capillaries? A. Lymphatic. B. Fenestrated. C. Somatic. D. Visceral. *E. Sinusoidal. 48. M. Sechenov named arterioles the "faucets" of the cardiovascular system. What structural elements provide this function of arterioles? A. Colloginous fibres. B. Longitudinal myocytes C. Elastic fibres D. Longitudinal muscular fibres E.*Circular myocytes 54. Tunica intima of a vessel has been impregnated with argentic salt. As a result the cells with rugged, twisting edges have been detected. Name these cells. A. Stellate cells. *B. Endotheliocytes. 49. A patient, 40 years, carried the heart attack of myocardium. What morphological 24 C. Myocytes. D. Fibroblasts. E. Adipocytes. 60. Vessels walls have rather significant differences in the structure of the tunica media. What causes specific peculiarities of this tunica structure in different vessels? A. High concentration of catecholamines in blood. B. Influence of endocrine system organs. C. Central nervous system regulation. D. Inductive influence of autonomic ganglions. *E. Hemodynamic conditions. 55. There are some tunics in the wall of blood vessels and heart. What tunic of the heart corresponds to a blood vessels wall according to its histogenesis and tissue structure? A. Myocardium. *B. Endocardium. C. Pericardium. D.Epicardium. E. Epicardium and myocardium. 61. Large arteries stretch during systole and return to the start state during diastole to provide bloodstream stability. Which structural components of vessel wall explain this? *A. Elastic fibres. B. Muscle fibres. C. Reticular fibres. D. Collagen fibres. E. Numerous fibroblasts. 56. In a histological specimen of a blood vessel dyed with orcein there have been detected from 40 to 60 elastic fe-nesrated membranes in the tunica media. Name this blood vessel. A. Artery of mixed type. B. Artery of muscular type. *C. Artery of elastic type. D.Vein of muscular type. E. Vein of unmuscular type. 62. Tunica intima of a blood vessel is lined with epithelium from within. What epithelium is this? A. Pseudostratified epithelium. B. Mesothelium. C. Epidermis. D.Transitional epithelium. *E. Endothelium. 57. Large quantity of exudate has been detected in the pericardial cavity of a patient with exudative pericarditis. Functional activity disorder of what cells caused this? A. Fibroblasts. *B. Endotheliocytes. C. Contractile cardiac cells. D. Conductive cardiac cells. E. Endotheliocytes. 63. Abnormalities of the development of the ventricle myocardium of a newborn child were diagnosed. The disturbance of which embryonic anlage development causes such pathology? A. Mesenchyme. B. Parietal splanchnopleure. C. Endoderm. D. Ectoderm. *E. Myoepicardial plate. 58. Arterioles are playing an important role in supplying functional units of organs with blood. Which arteriole structures perform this function? A. External elastic membrane. *B. Myocytes. C. Internal elastic membrane. D. Special cells of connective tissue. E. Endotheliocytes. 64. In a heart wall histological specimen between endocardium and myocardium large cells with light cytoplasm and eccentrically located nucleus are detected. What cells of heart have these morphological features? A. Lipocytes. B. Pacemaker cells. C. Contractile cardiac cells. D. Endocrine cells. *E. Cells of Purkinje's fibers. 59. In a heart specimen there are detected cells of squared shape, 80-120 micrometers in size, with a centrical nucleus and well-developed myofibrils connected with the help of intercalated disks. What function is connected with these cells? A. Regenerative. B. Nerve impulses conduction. C. Endocrine. D. Protective. *E. Heart contraction. 65. I.M.Sechenov called arterioles "the taps" of the cardiovascular system. What structural elements provide this function of arterioles? A. Collagen fibers. B. Longitudinal myocytes. C. Elastic fibres. 25 D. Longitudinal muscle fibers. *E. Circular myocytes. HAEMOPOIETIC AND LYMPHOID ORGANS 71. A histologycal section shows an organ with a large amount of lymphatic tissue, including nodules with germinal centers and a deeply invaginated mucosal suface formed by a stratified but poorly defined epithelium. The section is an example of A.* palatine tonsil B. lymph node C. spleen D. thymus E. Peyer patch 66. In a histological specimen the vessels, which begin blindly, are detected. These vessels have a form of flattened endothelial tubes. They do not contain basic membrane and pericytes. Endothelium of these vessels is fixed by fixative fibers to collagen fibers of connecting tissue. What vessels are these? A. Hemocapillaries. *B. Limphocapillaries. C. Arterioles. D. Venules. E. Arteriovenous anastomosis. 72. If stem cells of red bone marrow are damaged, regeneration of which cells population of connective tissue will destroy? A.Reticular cells B. Pericytes C. Fat cells D. Fibroblasts E.*Macrophages 67. In a heart specimen there are detected cells located in light cords with a small amount of myofibrils, inclusions of glycogen, and eccentrically located nucleus. What cells are these? *A. Purkinje's fibers. B. Conducting pacemakers. C. Conducting transitive. D. Endocrine. E. Contractile. 73. The thymus of the new-born child is underdeveloped. What type of hemopoesis is disturbed? A.Granulocytopoesis B. Monocytopoiesis C. Erithrocytopoesis D.*Lymphocytopoesis E. Megakaryocytopoesis 68. If you were looking at transmission electron micrographs, which cell type in the cardiovascular system would you expect to contain the highest density of micropinocytotic vesicles? A. Pericyte. B. Fibroblast in the tunica adventitia of the aorta. C. Endothelium of renal artery. D. *Endothelium of a continuous capillary. E. Myofiber of the ventricle. 74. In histological micropreparation the medula of hemopoietic organ's lobule has more light coloring and contains epithelial corpuscles. What organ these morphological signs belong to? A. Lymph node B.*Thymus C. Spleen D. Liver E. Adrenal gland 69. The organ of the cardiovascular system consists of cells connected with one another through intercalated disks. What organ is this? A. Vein of muscular type. B. Heart. C. Artery of the muscular-elastic type. D. Artery of muscular type. E. Aorta. 75. A hemopoietic organ which consists of different on a form lobules is explored in histological preparation. There is the cortex and medula in every lobule. What is this organ? A. Lymph node B.*Thymus C. Spleen D. Tonsils E. Appendix 70. In the wall of blood vessels and wall of heart a some tunics (layers) are distinguished. What is the layer of heart according to histogenesis and tissue composition is identical to the wall of vessels? A. Myocardium. B.* Endocardium. C. Pericardium. D. Epicardium. E. Epicardium and myocardium. 76. In histological micropreparation the parenchima of organ is represented by lymphoid tissue which forms lymphoid nodules. These nodules are disposed diffusely and have a central artery. What organ has such structure? 26 A.Thymus. B. Tonsil. C. Lymph node D.*Spleen E. Red bone marrow reticuloepitheliocytes. How is such phenomenon named? A. Hypotrophy of thymus. B. Age-dependent involution of hymus. C.*Accidental involution of thymus. D. Dystrophy of thymus. E. Atrophy of thymus. 77. In a microslide there is kidneyshaped organ, which has cortex and medulla. Cortex is represented by separate spherical nodules by a diameter 0,5-1 mm, and medulla - by medullary cords. What is this organ? A.Thymus. B. Kidney. C.*Lymph node. D. Adrenal gland. E. Spleen. 82. At the infectious diseases and intoxications the amount of reticuloepitheliocytes. Gassales corpuscles increase in the lobules of thymus; the area of medulla become larger. How are these changes named in thymus? A.*Accidental involution. B. Age-dependent involution. C. Chemoly mphatic status. D. T-immunodeficiency. E. B-immunodeficiency. 78. The microsection of lymph node is made. There is widening of its paracortical zona in the microslide. Proliferation of what cells of lymph node has caused this process? A.Macrophages B. Dendritic cells. C. Plasmacytes. D.*T-lymphocytes E. Reticulocytes. 83. With the purpose of diagnostics at a patient a punktate of parenchyma of hemopoietic organ was taken. In smears of this punktate megakaryocytes are found. What is this organ? A.*Red bone marrow. B. Spleen. C. Thymus. D. Lymph node. E. Tonsil. 79. In a microslide spherical structures containing lymphocytes are exposed. In this structure there is central artery What organ is explored? A.*Spleen. B. Kidney C. Thymus. D. Bone marrow E. Lymph node. 84. In a spleen specimen a blood vessel is detected. Its wall consists of basic membrane with endothelium, tunica media is absent, adventitia is grown together with connective tissue interlayers of spleen. What vessel is it? A. Arteriole. B. Vein of muscular type with poor development of muscular elements. C. Artery of muscular type. *D.Vein of fibro type. E. Artery of elastic type. 80. Two histological micropreparations are given to the student. On both there are the organs having lymphatic nodules. On the first micropreparation follicles contain the eccentrically located arterial vessel; on the second there are follicles without arteries. What is this organs? A. First is red bone marrow, second is spleen. B.*First is spleen, second - lymph node C. First is thymus, second is spleen D. First is a liver, second is lymph node E. First is a liver, second is spleen 85. Experimentally into the organism of a laboratory animal thymosin antibodies have been introduced. Differentiation of what cells will be affected first of all? *A. T-lymphocytes. B. Monocytes. C. B-lymphocytes. D. Macrophages. E. Plasma cells. 81. In the case of action of unfavorable factors on the organism in thymus the reconstruction of organ take place. This reconstruction is accompanied by mass death of thymoctes, by migration of lymphocytes in peripheral organs, by proliferation of 86. In a histological specimen an organ parenchyma is represented by lymphoid tissue which forms lymph nodules. These nodules are diffusely arranged and have a central artery. What organ has such structure? 27 A. Thymus. B. Tonsil. C. Lymph node. *D. Spleen. E. Red bone marrow. 92. A student has to study two smears specimens. In one of them all visual field is covered by erythrocytes. In the other one there are blood elements of different maturity. What smears are these? A. Frog blood and human blood. B. Blood and lymph. *C. Blood and a smear of human red bone marrow. D. Blood and a smear of yellow bone marrow. E. A smear of yellow and red bone marrow. 87. A newborn child has an undeveloped thymus. What type of hematopoiesis is damaged? A. Granulocytopoiesis. B. Monocytopoiesis. C. Erythropoiesis. *D. Lymphopoiesis. E. Megakaryocytopoiesis. 93. A student has two histological specimens; both contain organs with lymph nodules. In the first specimen follicles contain eccentrically located artery, in the second one there are follicles without arteries. What organs are these? A. The first - red bone marrow, the second - spleen. *B. The first - spleen, the second -lymph node. C. The first - thymus, the second -spleen. D.The first - liver, the second – lymph node. E. The first - liver, the second - spleen. 88. A histologic specimen of medulla substance of a hematopoietic organ lobule has a lighter strain and contains epithelial bodies. What organ has these morphologic characteristics? A. Lymph node. *B. Thymus. C. Spleen. D. Liver. E. Kidney. 94. A specimen of human red bone marrow contains giant cells clusters in close contact with sinusoidal capillaries. Name the blood elements, which differentiate from these cells. A. Erythrocytes. *B. Thrombocytes. C. Leukocytes. D. Monocytes. E. Lympocytes. 89. In a microscopic specimen is a bean-shaped organ which has cortical and medullar substance. Cortical substance is represented by separate spherical nodules 0.5-1 mm in diameter, medullar substance - by medullary cords. What organ is this? A. Thymus. B. Kidney. *C. Lymph node. D. Adrenal gland. E. Spleen. 95. In case of unfavorable factors influence on the organism reorganization of thymus takes place. This reorganization is accompanied by mass destruction of thymocytes, their migration into peripheral organs, and proliferation of epithelioreticulocytes. How is this phenomenon called? A. Hypotrophy of thymus. B. Age involution of thymus. *C. Accidental involution of thymus. D. Dystrophy of thymus. E. Atrophy of thymus. 90. In the specimen of a lymph node histological section the enlargement of its paracortical zone is observed. The proliferation of which lymph node cells causes this process? A. Macrophages. B. Waterside macrophages. C. Plasma cells. *D. T-lymphocytes. E. Reticulocytes. 96. The quantity of epithelioreticulocytes and Hassall corpuscles in thymus lobules increases in case of infection diseases or intoxications. The area of medullary substance extends. How are these changes called? *A. Accidental involution. B. Age involution. C. Status thymicolymphaticus. D.T-immunodeficiency. E. B-immunodeficiency. 91. In a microscopic specimen spherical structures of lymphocytes are detected. In the middle of the structures there is a central artery. Name this organ. *A. Spleen. B. Kidney. C. Thymus. D.Bone marrow. E. Lymph node. 28 97. The punctate of hematopoietic organ parenchyma has been taken with the purpose of diagnostics. As a result, megakaryocytes have been found. What hematopoietic organ is this? *A. Red bone marrow. B. Spleen. C. Thymus. D. Lymph node. E. Tonsil. cytoplasm, which contact with the help of their processes. What cells are these? A. Dendritic cells. B. Fibroblasts. C. Macrophages. *D. Reticular cells. E. Osteocytes. 103. In lymph node biopsy material in medullary cords the focus of increased plasmocytogenesis is detected. Antigen-dependent stimulation of what cells caused the formation of this center? *A. B-lymphocytes. B. T-lymphocytes. C. Macrophages. D. Dendritic cells. E. Interdigitative cells. 98. In the course of an experiment a vital coloring agent was introduced into a lymph node afferent vessel of an animal. In what cells of the lymph node will it be possible to detect it? *A. Typical and waterside macrophages. B. Reticular endotheliocytes. C. B-lymphocytes. D. Plasma cells. E. T-lymphocytes. 104. In a palatine tonsil histological specimen crypts are detected. Their epithelium is infiltrated by leukocytes. What epithelium is a part of this structure? A. Stratified cuboidal. B. Simple columnar. *C. Stratified squamous non-keratinized. D. Stratified squamous keratinized. E. Pseudostratified ciliated. 99. Developing blood cells of red bone marrow are located in the form of islets. Some of the islets are linked with macrophages. What blood elements are developing in these islets? A. Basophile granulocytes. B. Unmature T- and B-lymphocytes. C. Monocytes. D. Thrombocytes. *E. Erythrocytes. 105. Inactive, yellow bone marrow can convert back into active, red marrow when the organism is stressed, for instance, after a major blood loss. Active hematopoietic marrow contains adventitial reticular cells, which are critical support elements. Which cells of yellow marrow are likely to give rise to these adventitial reticular cells? A. Endothelial cells. B. Macrophages. C. Fatty cells. D. *Adventitial cells. E. Smooth muscle cells. 100. In the histological section of a lymph node of an experimental animal in medullary cords after antigen stimulation a plenty of cells of such morphology have been detected: intensively basophilic cytoplasm, eccentrically located nucleus with chromatin, which is located as wheel spokes with a light site of cytoplasm near it. What cells are these? A. Macrophages. *B. Plasma cells. C. Fibroblasts. D. Adipocytes. E. Mast cells. 101. A child has a congenital immunodeficiency. Cellular immunity is damaged, which results in frequent viral infections. What organ disorder is it most probably caused by? *A. Thymus. B. Red bone marrow. C. Lymph nodes. D. Spleen. E. Palatine tonsil. 106. 76. A histological preparation of a red bone marrow of the person shows clumps of the gigantic cells located in close contact with sinusoidal capillaries. What cellular elements of blood are formed from these cells? A. Erythrocytes B. *Platelets C. Leucocytes D. Monocytes E. Lymphocytes 102. In a specimen of human red bone marrow smear among the cells of myeloid line and adipocytes there are stellate cells with oxyphilic 107. In a microslide there is kidneyshaped organ, which has cortex and medulla. Cortex is represented by separate spherical nodules 29 by a diameter 0,5-1 mm, and medulla – by medullary cords. What is this organ? A. Thymus. B. Kidney. C. *Lymph node. D. Adrenal gland. E. Spleen. A.* endocrine B. paracrine C. apocrine D. holocrine E. merocrine 113. At a patient which during 7 years old suffers by a hypothyreosis is discovered insufficiency of thyroid hormones. What cells of adenohypophysis are here changed? A. Corticotropocytes B. Gonadotropocytes C.*Tyreotropotsytes D. Somatotropoctes E. Mammotropocytes. 108. Two histological micropreparations are given to the student. On both there are the organs having lymphatic nodules. On the first micropreparation follicles contain the eccentrically located arterial vessel; on the second there are follicles without arteries. What are these organs? A. First is red bone marrow, second is spleen. B. *First is spleen, second – lymph node. C. First is thymus, second is spleen. D. First is a liver, second is lymph node. E. First is a liver, second is spleen. 114. It is known that aldosteron regulates content of sodium in an organism. What cells of adrenal glands produce this hormone? A. Cells of zona fasciculate B. Epinephrocytes. C. Cells of zona reticularis D.*Cells of zona glomerulosis E. Norepinephrocytes. 109. The microsection of lymp node is made. There is widening of its paracortical zona in the microslide. Proliferation of what cells of lymph node has caused this process? A. Macrophages B. Dendritic cells. C. Plasmacytes. D.*T-lymphocytes. E. Reticulocytes. 115. Endocrinologist observes a patient of 40 years with lack of adrenal cortex function, which is characterized by decreases of amount of hormone aldosterone in a blood. The function of what cells of cortex is affected? A.*Zona glomerulosis B. Zona fasciculata C. Zona reticularis. D. Sudanophobic zona. E. X-zona 110. With the purpose of diagnostics at a patient a punktate of parenchyma of hemopoietic organ was taken. In smears of this punktate megakaryocytes are found. What is this organ? A *Red bone marrow. B. Spleen. C. Thymus. D. Lymph node. E. Tonsil. 116. In the endocrinology department at the patient the desease is diagnosed: acromegaly. By hyperfunction of what pituitary cells is this disease contingently? A. Tireotropocy tcs B. Gonadotropocy tes. C. Chromophobic. D. Mammotropocytes. E.*Somatotropocytes ENDOCRYNE SYSTEM 111. The histological appearance of a thyroid gland being stimulated by thyroidstimulating hormone (TSH) would show which of the following? A.* Columnar-shaped follicular cells B. Decreased numbers of follicular cells C. Increased numbers of parafollicular cells D. An abundance of colloid in the lumen of the follicle E. Decreased numbers of parafollicular capillaries 117. A patient with 7 years' history of hypothyroidism has thyroid hormone deficiency detected. What cells of adenohypophysis are changed? A. Corticotropocytes. B. Gonadotropocytes. *C. Thyrotropocytes. D. Somatotropocytes. E. Lactotropocytes. 112. Somatostatin secreted by δ cells of the islets of Langerhans affects the activity of the insulin and glucagon-secreting cells of the islets. This type of secretion is called 30 118. The removal of what endocrine gland causes pubertas precox of experimental animals? A. Thyroid gland. B. Pituitary gland. C. Adrenal gland. *D. Epiphysis. E. Parathyroid gland. B. Gonadotropocytes. C. Chromophobocytes. D. Lactotropocytes. *E. Somatotropocytes. 124. A 42-year-old patient has spasms after the resection of the thyroid gland. Relief has come after the introduction of calcium preparations. Function infringement of what endocrine glands has caused this condition? A. Adrenal glands. *B. Parathyroid glands. C. Ovaries. D. Hypophysis. E. Epiphysis. 119. In a histological specimen of ad¬renal glands cortical substance one can see small polygonal cells forming round clusters and containing a small quantity of lipidic inclusions. What part of adrenal glands is represented in the specimen? *A. Zona glomerulosa. B. Intermediate zone. C. Zona fasciculata. D.Zona reticularis. E. Medullary substance. 125. A 40-year-old woman has weak birth activity caused by the weakness of myometrium contractile ability. What hormonal preparation is it necessary to introduce to help her? A. Prednisolone. B. Hydrocortisone. C. Dexamethasone. D. Aldosterone. *E. Oxytocin. 120. In a histological specimen of adrenal glands one can see large cells of cubic form located in the form of cords and containing a lot of lipidic inclusions. What part of adrenal glands is represented in the specimen? A. Medullary substance. B. Zona glomerulosa. C. Intermediate zone. D.Zona reticularis. *E. Zona fasciculata. 126. There are round structures of different size in the histological specimen of an endocrine gland. These structures' wall is formed of one layer of epithelial cells on basic membrane, inside they contain homogeneous non-cellular mass. What gland is this? A. Posterior lobe of pituitary gland. B. Adrenal gland, cortical substance. C. Parathyroid gland. D. Anterior lobe of pituitary gland. *E. Thyroid gland. 121. A 25-year-old woman in a month after delivery appealed to a doctor with complaint of milk quantity decline. The lack of which hormone causes such con¬dition? A. Glucagon. B. Adrenocorticotropin. C. Somatostatin. D. Insulin. *E. Prolactin. 127. A 30-year-old patient has hyperfunction of thyroid gland. What form do the thyrocytes of follicles have? A. Polygonal. *B. Columnar. C. Squamous. D. Spindle-shaped. E. Cuboidal. 122. Aldosterone is known to regulate sodium content in organism. Which cells of adrenal glands secrete this hormone? A. Cells of zona fasciculata. B. Epinephrocytes. C. Cells of zona reticularis. *D. Cells of zona glomerulosa. E. Norepinephrocytes. 128. In a histological specimen of endocrine gland epithelial cords contain ing chromophilic (acidophilic and basophilic) and chromophobic cells are detected. What organ is presented in the preparation? A. Epiphysis. B. Adrenal gland. C. Neurohypophysis. D.Thyroid gland. *E. Adenohypophysis. 123. Acromegaly of a patient in an endocrinological department is diagnosed. The hyperfunction of what hypophysis cells caused this disease? A. Thyrotropocytes. 31 134. It is known that aldosteron regulates content of sodium in an organism. What cells of adrenal glands produce this hormone? A.Cells of zona fasciculata. B. Epinephrocytes. C. Cells of zona reticularis. D. *Cells of zona glomerulosis. E. Norepinephrocytes. 129. An experimental animal excretes a lot of urine (polyuria) and has severe thirst (polydipsia). Urine does not contain sugar. With the function infringement of what cells is it connected? A. Follicular endocrine cells of thyroid gland. *B. Neurosecretory cells of hypothalamus. C. Parathyrocytes. D. Endocrine cells of glomerular zone of adrenal gland. E. Endocrine cells of medullary substance of adrenal gland. 135. In the endocrinology department at the patient the desease is diagnosed: acromegaly. By hyperfunction of what pituitary cells is this disease contingently? A. Tireotropocytes B. Gonadotropocytes. C. Chromophobic. D. Mammotropocytes. E. *Somatotropocytes 130. A 30-year-old woman against the background of sex hormones deficiency has an increased quantity of follicle-stimulating hormone. What cells synthesize this hormone? A. Thyrotropocytes. *B. Gonadotropocytes. C. Corticotropocytes. D. Somatotropocytes. E. Lactotropocytes. DIGESTIVE SYSTEM. DIGESTIVE TRACT 136. A 26-year-old female patient goes to the dentist because of a toothache. On examination the dentist notes that the patient has a carious lesion that involves not only the enamel but also the dentin and the cementum of the tooth. Which of these substances cannot repair itself? A.* Enamel B. Dentin C. Cementum D. Dentin and cementum E. Dentin, cementum, and enamel 131. You have discovered a mutant mouse with defective neural crest migration. Which endocrine organs are most severely affected? A. Adenohypophysis and neurohypophysis B. *Neurohypophysis and pineal gland C. Adrenal cortex and adrenal medulla D. Adrenal cortex and thyroid E. Adrenal medulla and thyroid 132. You begin to have muscle tremors and have difficulty breathing. Fearing for your life, you rush to your physician. After extensive blood tests, you learn your blood Ca2+ levels are dangerously low. Which endocrine gland or region is most likely to have depressed or abnormally low function? A. Adenohypophysis B. Neurohypophysis C. Follicular cells of thyroid D. Parathyroid E. *Parafollicular cells of thyroid 137. By some reasons at the age of 5 months a processes of destruction of Hertvig epithelial sheath around a tooth were infringed. What tissue won't develop because of this? A. Enamel. B. Dental papilla. C. Dental saccule. D.Pulp. *E. Cement. 133. A histological section of adrenal glands shows the large cells of the cuboidal shape which are located as cords and contain a plenty of lipid inclusions. What part of adrenal glands is represented in a histological section? A. Medula B. Zona glomerulosa C. Zona intermedia D. Zona reticularis E. *Zona fasciculata 138. By some reasons the activity of cells in the peripheral part of pulp is temporarily blocked. What tissue of the tooth is under the threat of physiological regeneration deficiency? *A. Dentin. B. Enamel. C. Pulp. D. Cellular cement. E. Acellular cement. 32 139. In the first histological tooth specimen acellular cement is detected, in the second - cellular. What part of tooth is the second preparation made of? A. Upper part of the tooth under the gum. B. Dental cervix. *C. Root apex. D. Crown of tooth. E. Border between crown and root. B. Primary. C. Tertiary. D. Sclerosed. E. Dead tracts. 145. In a histological specimen there is a section of a jaw of a 2-month-old human embryo with a damaged enamel epithelial organ. What histological part of the tooth will not develop? A. Dentin. B. Pulp. C. Cement. D. Periodontium. *E. Enamel. 140. A student was wrong when he said that enamel is descended from mesenchyme cells. What is the correct answer? A. Cells of Hertvig epithelial sheath. B. Cells of stellate reticulum of enamel organ. C. Cells of epithelial cervix of enamel organ. *D. Epithelial cells of the internal layer of enamel organ. E. Epithelial cells of the external layer of enamel organ. 146. During embryogenesis superficial mesenchimal cells of dental papilla were damaged. To the failure of what dental structure formation can this lead? *A. Dentin. B. Enamel. C. Cement. D. Periodontium. E. Enamel cuticle. 141. During embryogenesis the formation of the anterior part of primary gut was disturbed. What is the possible localization of development anomalies? A. Pancreas. B. Stomach. C. Liver. *D. Organs of oral cavity. E. Jejunum. 147. Internal cells of dental saccule were damaged during dental morphogenesis. The formation of what structures will be damaged? A. Pulp. B. Enamel. C. Dentin. *D. Cement. E. Periodontium. 142. Disorder in the secretory activity of odontoblasts took place du ring mantle dentin formation in a milk tooth. Formation of what fibers will be changed? A. Elastic. B. Reticular. *C. Radial Korf collagen fibers. D.Tangential Ebner collagen fibers. E. Nerve. 148. Examination of a patient has shown deficient pulp development. What embryonal source has been affected? A. Ectoderm. *B. Mesenchyme. C. Endoderm. D. Epithelium of oral cavity. E. Dorsal mesoderm. 143. In a histological specimen of the lower jaw forming dentin is detected. Collagen fibers synthesized by odontoblasts are thin and perpendicular to dentinal tubules. What fibers are being formed in dentin? A. Radial. *B. Tangential. C. Parallel. D.Sharpey. E. Perforated. 149. In a histological specimen of the lower jaw sagittal section of a 3.5-month-old human embryo an epithelial enamel organ surrounded by compactly placed mesenchimal cells is observed. How is this mesenchimal formation called? A. Pulp of enamel organ. B. Dental papilla. C. External enamel cells. D. Internal enamel cells. *E. Dental saccule. 144. There are disordered areas of dentin tubules and collagen fibrils in prepulpal dentin of a decalcified tooth of an adult patient. Name this kind of dentin. *A. Secondary. 150. During oral cavity embryogenesis dental enamel development was damaged. What source of dental development was affected? 33 A. Mesoderm. B. Mesenchyme. *C. Epithelium of oral cavity. D. Dental saccule. E. Dental papilla. 156. A sick child has white scurf on the tongue. What papillae have caused this? A. Fungiform papilla. B. Circumvallate papilla. C. Foliate papilla. *D. Filiform papilla. E. Leaflike papillla. 151. Dentin having been formed, a process of inversion begins in cells - the movement of nucleus and organelles. What cells are involved in this process? *A. Enameloblasts. B. Odontoblasts. C. Preodontoblasts. D.Cementoblasts. E. Cementocytes. 157. During the act of swallowing milk runs through an infant's nose, the child chokes, breathes heavily. During exam¬ination a surgeon detected a congenital defect - cleft palate. What development anomalies lead to this pathology? *A. Nonunion of palatine processes. B. Disorder of union of middle nasal process with maxillary one. C. Nonunion of mandible processes. D. Nonunion of lateral tongue tubercles. E. Disorder of development of frontal process. 152. Undeveloped periodontium was detected during microscopic examination of biopsy material. To what source of dental development does this infringement belong? A. Dental papilla. *B. Dental saccule. C. Dental plate. D. Preenameloblasts. E. Enameloblasts. 158. Experimentally the external layer of a dental saccule was destroyed in an embryo's dental germ. Name the structure that will not develop in future. A. Dentin. B. Enamel. *C. Periodontium. D. Cement. E. Pulp. 153. There are 3 zones in a histological specimen of an oral cavity organ: adipose, mucous, fibrous. What organ is this? A. Cheek. B. Gum. C. Soft palate. D.Lip. *E. Hard palate. 159. A 42-year-old patient suffers from parodontosis. Round calcified formations of 2-3 mm in diameter are found in the crown part of pulp. What structures are these? A. Intertubular dentin. B. Interglobular cavities. C. Sclerosed dentin. D.Dead dentin. *E. Denticles. 154. In a histological specimen an organ of oral cavity is observed. It consists of 3 parts dermal, intermediate, and mucous, the base being formed of striated muscle tissue. What organ is it? A. Hard palate. B. Gum. *C. Lip. D.Soft palate. E. Cheek. 160. A child complains of toothache. A dentist diagnosed carious damage of enamel. Quantity of what mineral substances decreases in the site of carious damage? A. Sodium, calcium, potassium. *B. Phosphorus, fluorine, calcium. C. Potassium, phosphorus, fluorine. D. Magnesium, fluorine, calcium. E. Phosphorus, magnesium, potassium. 155. In a histological specimen of an oral cavity organ it can be seen that the anterior surface is lined with stratified squamous nonkeratinized epithelium, the posterior surface - with pseudostratified ciliary epithelium. What organ is it? *A. Soft palate. B. Gum. C. Hard palate. D.Lip. E. Cheek. 161. In a histological specimen there is presented a transverse section of the wall of a hollow organ, whose mucous membrane is covered with stratified squamous non-keratinized epithelium. What organ is this? *A. Esophagus. B. Duodenum. 34 C. Colon. D. Uterus. E. Vermiform appendix. D. Ileocoic E. Colorectal 166. A gistologic section of the intestine shows branched tubular glands in the compartment bounded by the muscularis mucosae and the muscularis externa. The glands drain into the crypts of Lieberkuhn. This is a section of A.* duodenum B. pylorus C. cecum D. ileum E. jejunum 162. The process of epithelium cornification is detected during the morphological analysis of the mucous coat of esophagus biopsy material. What epithelium covers the mucous coat of esophagus? A. Stratified squamous keratinized. B. Simple squamous. C. Simple pseudostratified ciliary. D. Simple columnar. *E. Stratified squamous non-keratinized. The human esophagus is lined with (A) pseudostratified ciliated columnar epithelium (B) simple columnar absorptive epithelium (C) simple columnar mucus-secreting epithelium (D) nonkeratinized stratified squamous epithelium (E) stratified ciliated columnar epithelium 163. The girl, 15 years, has a corrosive burn of the surface of tongue. What epithelium thus is damaged? A. Transitional B. Pseudostratified ciliated C. Simple columnar D. Stratified nonkeratinized E. Simple squamous 167. A histologic slide of a transverse section through the duodenum shows large cells with large euchromatic nuclei and prominent nucleoli between two layers of smooth muscle that are oriented at right angles to one another. The large cells are A.* neurons of the myenteric plexus that innervate the muscularis externa B. Enteroendocrine cells that secrete regulatory peptides C. Paneth cells that secrete bactericidal enzymes D. Primordial cells that migrate into the epithelium to form stem cells E. Lymphocytes that have undergone blastic transformation 164. Secretin and cholecystokinin are produced and secreted by cells in the lining of the alimentary tract. Which of the following statements about these two substances is true? A.* They are hormones that have target cells in the pancreas and biliary tract B. They are digestive enzymes present within the lumen of the duodenum C. They are produced by Paneth cells D. They are produced by Brunner glands and released into the lumina of the crypts of Lieberkiihn E. They are produced by diffuse neuroendocrine cells in the lining of the stomach and small intestine 168. A patient has malignant anemia developing after gastrectomy. The absence of the cells of what gastric glands causes this pathology? A. Neck mucous cells. B. Principal cells. *C. Parietal cells. D. Endocrinocytes. E. Goblet cells. 169. . In a histologic specimen in the submucosal base of small intestine terminal parts of serous glands are located. What part of the intestine is presented in the specimen? A. Jejunum. B. Colon. *C. Duodenum. D. Ileum. E. Appendix. 165. A histologic section of a portion of the alimentary canal shows the junction of a stratified spithelium. Submucosal mucus-secreting glands are visible under the stratified squamous epithelium. The columnar epithelium is a sheet of mucus-secreting cells. This section shows which of the following junctions? A.* Esophagogastric B. Gastroduodenal C. Rectoanal 170. In a histological specimen of a small intestine wall at the bottom of crypts there have been found clustered cells. In the apical part of the cells there are large acidophilic secretory granules; cytoplasm is basophilic-colored. What cells are these? A. Goblet. 35 B. Columnar without bordering. C. Endocrine. *D.Panett. E. Columnar with bordering. C. Goblet exocrine cells. *D. Columnar non-border epithelial cells. E. Exocrine cells with acidophilic granulosity. 176. After the ray therapeutics of the stomach cancer a 48-year-old patient has malignant anemia developed caused by the damage of the cells producing antianemic factor. What gastric glands cells are damaged? A. Neck mucous cells. B. Principal exocrine cells. *C. Parietal exocrine cells. D. Endocrine cells. E. Additional mucous cells. 171. Clusters of spherical cells with large basophile nuclei and thin rim of cytoplasm are detected in a specimen of small intestine in lamina propria of mucous membrane. Majority of the clusters have a light central part containing fewer cells than the peripheral one. To what morphological structure do such clusters belong? A. Lymphatic vessels. B. Nerve nodule. C. Adipose cells. D. Blood vessels. *E. Lymph nodule. 177. An infectiologist has detected an acute enterocolitis syndrome with infringement of the processes of breakdown and absorption of nutritive materials of a patient. Due to the damage of what intestinal epithelium cells is such disorder observed? A. Goblet cells. B. Non-microvilli epitheliocytes. *C. Columnar epitheliocytes with microvilli. D. Cells with an acidophile granule. E. Endocrynocytes. 172. A child of the first year of life has disorders of mother's milk suction. With activity disorder of what gastric proper glands cells is it connected? A. Endocrine cells. B. Parietal exocrine cells. C. Neck mucous cells. D. Additional mucous cells. *E. Principal exocrine cells. 178. Examination of a 43-year-old patient has shown that protein products are digested badly in the stomach. Gastric juice analysis has shown low activity. The function of what cells of stomach is damaged in this case? A. Principal (chief) exocrine cells. *B. Parietal exocrine cells. C. Mucous cells. D. Endocrine cells. E. Neck mucous cells 179. . A 39-year-old patient's small intestine was investigated after the radiation therapy of liver tumor. It was detected that the ulcer of small intestine formed as a result of mitotic activity depression of the cells, which contribute to the tegumental epithelium of small intestine renewing. What cells are these? A. Endocrine. B. Columnar epithelial. C. Goblet exocrine. *D. undifferentiated epithelial cells. E. Exocrine cells with acidophil granulosity. 173. In an electronic microgram of duodenal epithelium a cell with electro-dense granules on the basal pole is clearly seen. What cell is this? A. Undifferentiated. B. Columnar with microvilli. *C. Endocrine cells. D.Goblet cell. E. Parietal exocrine cells. 174. Intragastric pH-metry of a patient with chronic gastritis was performed. The procedure detected the reduction of gastric juice acidity. What cells function is lowered? A. Endocrine cells. B. Principal exocrine cells. *C. Parietal exocrine cells. D.Neck mucous cells. E. Additional cells. 175. Significant infringement of the regeneration process of the small intestine mucous membrane epithelial layer of a cancer patient is detected by means of morphological research after ray therapeutics. What epithelial layer cells are damaged? A. Endocrine cells. B. Columnar epithelial cells with microvilli. 180. A 45-year-old patient is hospitalized with the complaint of pain in the stomach. Gastroscopy has detected small ulcers in the area of gastric fundus. The function impairment of what cells of the mucous coat of stomach became a reason for the mucous coat damage? 36 *A. Cells of superficial epithelium with mucous secretion. B. Parietal cells of stomach glands that secrete chlorides and ions of hydrogen. C. Principal (chief) exocrine cells that secrete pepsinogen. D. Endocrine cells which secrete somatostatin. E. Endocrine cells which secrete serotonin. B. *The presence of a connective tissue capsule around all O-MALT. C. The inability of O-MALT to make antibodies. D. The inability of O-MALT to undergo the process of immunological tolerance. E. The lack of a blood supply to O-MALT. 186. There are many examples of "opposing-pairs" in the body - where one group of cells does something that opposes the activity of a second group of cells. What is an example of an opposing-pair in the digestive system? A. *Parietal cells—Brunner's gland. B. Chief cells—pancreative acinar cells. C. Surface mucous cells—neck mucous cells. D. M cells—absorptive columnar cells. E. Paneth cells—enteroendocrine cells. 181. Some diseases of small intestine are connected with the functions damage of exocrine cells with acidophil granules. Where are these cells located? A. In the place of villi transition into crypts. B. In the apical part of intestinal villi. C. On lateral surfaces of intestinal villi. *D. At the bottom of intestinal glands. E. In the superior part of intestinal glands. 187. The malignant anemia develops in the patient after gastroectomy. Absence of what cells of gastric glands is the reason of this pathology? A. Mucous neck cells B. Chief cells C. *Parietal cells D. Enteroendocrine cells E. Goblet cells 182. The proportion between epithelial cells of mucosa change in case of certain diseases of large intestine. What types of cells dominate in epithelium crypts of large intestine in normal condition? A. Undifferentiated cells. B. Columnar villous epithelial cells. C. Endocrine cells. D.With acidophil granules. *E. Goblet cells. 188. A histologic section of the intestine shows branched tubular glands in the compartment bounded by the muscularis mucosae and the muscularis externa. The glands drain into the crypts of Lieberkuhn. This is a section of (A) pylorus (B) cecum (C) ileum (D) jejunum (E) *duodenum 183. Proctoscopy has shown a tumor proceeding from the mucosa of the caudal part of rectum. Of what epithelium has this tumor formed? A. Transitional. B. Simple columnar glandular. C. Simple columnar with microvilli. D. Simple cuboidal. *E. Stratified squamous non-keratinized. 189. A histologic section of a portion of the alimentary canal shows the junction of a stratified squamous epithelium and a simple columnar epithelium. Submucosal mucus-secreting glands are visible under the stratified squamous epithelium. The columnar epithelium is a sheet of mucus-secreting cells. This section shows which of the following junctions? (A) Gastroduodenal (B) Rectoanal (C) Ileocolic (D) * Esophagogastric (E) Colorectal 184. Intestinal epithelial cells can move antibody molecules into the lumen of the gut by transcytosis. This process involves: A. E*ndocytosis at the basal surface and exocytosis at the apical surface. B. Endocytosis at the apical surface and exocytosis at the basal surface. C. Disruption of tight junctions (zonula occludens). D. Movement through gap junctions. E. Movement through carriers (permeases). 185. The lymphatic aggregates found in the gut, known as O-MALT, differ from "dry" lymph nodes, such as those associated with arms and legs, in several ways. One of these is: A. The lack of afferent lymphatics in O-MALT. DIGESTIVE SYSTEM. DIGESTIVE GLANDS 37 190. A salivary gland histological specimen is being examined. In the specimen protein, mixed and mucous terminal departments are detected. What organ is being examined? A. Salivary gland of cheek. B. Parotid salivary gland. C. Submandibular salivary gland. D. Lip salivary gland. *E. Sublingual salivary gland. C. Sublingual gland. D. Submandibular gland. E. Submucosal gland of the esophagus. 195. The central, or axial, structure of the classic liver lobule is a (A) portal triad (B) sinusoid (C) *central vein (D) space of Disse (E) bile canaliculus 191. In a histological specimen an organ parenchyma is presented by lobules of hexahedral prism form consisting of anastomosing plates with sinusoidal capillaries. The capillaries are lying between the plates and are radially converging to the central vein. What anatomic organ has such morphological structure? A. Spleen. B. Pancreas. C. Thymus. *D. Liver. E. Lymph node. 196. Insulin is synthesized and secreted by which pancreatic cell? (A) Islet A cell (B) Exocrine acinar cell (C) *Islet B cell (D) Intercalated duct cell (E) Islet D cell 197. . A histologic section of an exocrine gland shows numerous serous secretory acini, some mucous acini, many prominent striated ducts, and distinct interlobular duels. This section is a sample of which of the following types of glands? (A) Sublingual gland (B) Exocrine pancreas (C) Eccrine sweat gland (D) Parotid gland (E) * Submandibular gland 192. In a histological specimen of a glandular organ only serous terminal parts are detected. In interlobular connective tissue a duct is seen, lined with two-layer or stratified epithelium. What organ is this? A. Submandibular salivary gland. *B. Parotid salivary gland. C. Pancreas. D. Sublingual salivary gland. E. Liver. RESPIRATORY SYSTEM 198. At the patient, 66 years, a malignant epithelial tumour, which occurs from a middle bronchus, was diagnosed. What epithelium is a source of development of this tumor? A.*Simple pseudostratified ciliated B. Stratified keratinized C. Stratified nonkeratinized D. Transitional E. Simple columnar 193. During the excrescence of connective tissue into the parenchyma of liver (fibrosis caused by chronic diseases) blood circulation disorder in classical lobules is observed. What is the direction of blood circulation in such lobules normally? *A. From periphery to centre. B. From centre to periphery. C. Around the lobule. D. From top to bottom. E. From bottom to top. 199. At the patient, 48 years, benign epithelial tumor of a pleura of the lung top part is revealed. What epithelium is a source of a tumor development? A. Pseudostratified ciliated B. Stratified nonkeratinized C.*Simple squamous D. Transitional E. Stratified keratinized 194. Imagine that you are looking through a microscope at ca. 400X total magnification at a standard H&E stained section of the parenchyma of a pancreas and that you can see secretory cells, but no islets, capsule, or connective tissue septa. What other digestive system gland would you be most likely to confuse this with, given a similar view limited to the parenchyma of the gland? A. Mucosal gland of the colon. B. *Parotid gland. 200. After a long inflammation of a nasal cavity mucosa the changes of an epithehum are observed. What epithelium has undergone to changes? 38 A.*Simple pseudostratified B. Stratified cuboidal C. Stratified squamous D. Simple squamous E. Stratified columnar 206. In an electronic micrograph some structures have the form of opened vesicles, the internal surface of which is lined with simple epithelium. It contains respiratory and secretory cells. What structures are these? *A. Alveoli. B. Bronchioles. C. Acini. D. Alveolar duct. E. Terminal bronchioles. 201. At the patient the dry pleuritis auscultates. What epithelium lining pleural cavity is damaged in this case? A.Simple cuboidal B.Simple columnar C.*Simple squamous D.Transitional E.pseudostratified 207. In the epithelium of airways there are cells with a cupola-shaped apical pole, on the surface of which microvilli are located. In the cell a well-developed synthetic device is detected, in the apical pole - secretory granules. What cell is this? A. Endocrine. B. Goblet. *C. Clara's. D. Without bordering. E. Cambial. 202. At the patient, 56 years, a malignant epithelial tumor of a trachea was diagnosed. What epithelium is a source of development of a tumor? A.Transitional B.*Simple pseudostratified ciliated C.Stratified nonkeratinized D.Stratified keratinized E.Simple columnar 208. . Premature infants have a respiratory distress syndrome developed. The insufficiency of what airhematic barrier component underlies this pathology? A. Basement membrane of endothelium. B. Endothelium of capillaries. *C. Surfactant. D. Basement membrane of alveolocytes. E. Alveolocytes. 203. A 22 year old male with respiratory difficulties is diagnosed with a mediastinal germ cell tumor. The primordial germ cell that gave rise to this tumor inappropriately migrated to this site from which of the following tissues? A.Liver B.Testis C.*Yolk sac D.Allantois E.Spleen 209. Hyperemia and increased mucous formation in the nasal cavity of a patient with acute rhinitis are detected. The activity of what cells of mucous membrane epithelium is increased? A. Microvillous. B. Ciliated. *C. Goblet. D. Basal. E. Endocrine. 204. A patient has appealed to an otolaryngologist with complaints of dryness in the nose which caused unpleasant sensations. Examination of nasal cavity mucosa has shown function infringements of mucous glands located in it. In what layer of nasal cavity mucosa are these glands located? A. Submucous layer. B. Epithelial plate. C. Muscle plate. *D. Proper mucous plate. E. Fibrocartilaginous plate. 210. Surfactant alveolar complex is known to be an important component of the airhematic barrier. This complex prevents alveoli from coalescence during expiration. What alveolar cells synthesize phospholipins that are used to form the complex? A. Border epithelial cells. B. Respiratory cells. *C. Alveolocytes of type II. D. Alveolar macrophages. E. Endothelium of capillaries. 205. In lungs alveoli there are special cells, which carry out gas exchange and form the barrier between air and blood. Name these cells. A. Alveolar macrophages. B. Clara's cells. *C. Type I alveolocytes. D.Type II alveolocytes. E. Microvillous epithelial cells. 211. A child has inspired a button. This button was removed from the right primary 39 bronchus with the help of a bronchoscope. What bronchial epithelium is the most likely to be damaged by the foreign body? A. Stratified non-keratinized. *B. Simple pseudostratified ciliated. C. Simple low-columnar. D. Transitional. E. Simple squamous. 216. In a section of lung tissue consisting predominantly of alveoli, a tubule about 2 mm in diameter is observed that contains smooth muscle and cartilage in its wall. The tubule is which one of the following? (A) *Alveolar duct (B) Alveolar sac (C) Bronchiole (D) Bronchus (E) Trachea 212. Pneumothorax describes a situation in which the lung collapses. Which of the following defects is most likely associated with this condition? A. Distension of the alveoli following hyperventilation. B. Failure of the upper respiratory tract to adequately warm and humidify the air, resulting in "shrinkage" of the lung. C. *Immaturity of the Type II pneumocytes. D. Disruption of junctional complexes between visceral pleura mesothelial cells, resulting in air leaking into the pleural cavity E. Excess contraction of smooth muscles in bronchi and bronchioles 217. The smallest active functional unit (including conduction and air exchange) of the lung is A *An alveolus B A respiratory bronchiolar unit (acinus) C A bronchopulmonary segment D Segmental bronchi E An intrapulmonary bronchus INTEGUMENTARY SYSTEM 218. The intercellular spaces in the stratum spinosum of the epidermis contain lipidcontaining sheets that are impermeable to water. This material is released from: A.* membrane-coating granules B. keratohyalin granules C. Langerhans cells D. sebaceous glands E. melanosomes 213. Premature infants with respiratory distress syndrome have difficulty breathing because the following type of cell has not yet matured: A. Type I pneumocyte B. Goblet cell C. Ciliated cell D. *Type II pneumocyte E. Alveolar phagocyte F. Brush cell G. APUD cell 219. In a routine histologic section of skin showing a full thickness of epidermis, mitotic cells are occasionally visible. These are characteristic of which level of the epidermis? A.* Stratum basale B. Stratum spinosum C. Stratum granulosum D. Stratum lucidum E. Stratum cornea 214. The syndrome of respiratory insufficiency develops in prematurely born children . Deficiency of what component of air-blood barrier underlies this pathology? A. Basal membrane of endothelium B. Endothelium of capillaries C. *Surfactant D. Basal membrane of pneumocytes Е. Pneumocytes 220. With age the human skin is exposed to changes, which can be shown by decrease of its elasticity. What elements of a connective tissue more over provide its elasticity? A.*Collagen and elastic fibers B. Cells of epidermis C. Ground substance D. Connective tissue cells E. Reticular fibers 215. It is known, that the important component of air-blood barrier is the complex of an alveolar surfactant, which prevents sticking of alveoluses during an exhalation. What cells of alveoluses synthesize phospholipids, used in construction of this complex? A. Microvillar (brush) cells B. Type I pneumocytes C. *Type II pneumocytes D. Alveolar macrophages Е. Endothelium of capillaries 221. Which substance have the most important role in formation of scar after healing of the wound? A.*Collagen 40 B.Keratan-sulfate C.Chondroithin-sulfate D.Elastin E.Hyaluronic acid 227. In medicolegal practice identification of personality is periodically necessary. The method of dactyloscopy is used for this purpose. Structure peculiarities of what layer define the individual skin pattern? A. Reticular derma layer. *B. Papillary derma layer. C. Epidermis. D. Epidermis and derma. E. Epidermis, derma, and hypoderm. 222. At the biopsy of mammary gland star-shaped cells are founded between a basal membrane and laktocytes. Name the source of embryonic development of these cells. A.dermatome B.Sclerotome C.Myotome D.*skin ectoderm E.Nephrogonotome 228. A child has abraded skin of the palm when falling down. What epithelium was damaged? A. Transitional. B. Stratified non-keratinized. C. Simple low-columnar. *D. Stratified keratinized. E. Simple squamous. 223. In an electronic micrograph of skin epidermis among the cells of cubic form dendritic cells are detected. In their cytoplasm Golgi apparatus is well-developed, there are a lot of ribosomes and melanosomes. Name these cells. *A. Melanocytes. B. Keratinocytes. C. Cells of Langerhans. D.Merkel's cells. E. Mast cells. 229. A woman has got allergic dermatitis of hands after industrial contact with chromium compounds. What cells of skin were mainly damaged by the disease? A. Plasma cells. *B. Mast cells. C. Macrophages. D. Neutrophils. E. Lymphocytes. 224. Terminal secretory parts of apocrine sudoriferous glands contain myoepithelial cells. What is the function of these cells? A. Protective. B. Secretory. *C. Contractive. D. Regenerative. E. Supportive. 230. The reticular layer of skin is damaged after a trauma. This layer will recover with the help of a cell population. Name this cell population. A. Macrophagic. *B. Fibroblastic. C. Lymphoblastic. D. Neuroblasts. E. Erythroblastic. 225. A patient with an open fracture of a forefinger has appealed to a traumatology center. First medical aid is given. Which of the injured tissues regenerates the most quickly? A. Nerve. B. Connective. C. Striated muscular. D.Bone. *E. Epidermis. 231. Some layers are absent on a limited area of epidermis after a trauma. Only germinative layer is preserved. Name the cells, which will become the main source of its regeneration. *A. Layer of basal cells. B. Layer of spinosum cells. C. Layer of granulosum cells. D. Layer of spinous and granular cells of undisturbed area. E. Clear layer cells of undisturbed area. 226. A 12-year-old patient has white spots without a pigment on skin. Spots have appeared after the age of 10, constantly increase in size. The absence of what cells of skin led to such formations appearance? A. Plasma cell. B. Adipocytes. C. Fibrocytes. *D. Melanocytes. E. Mast cell. 232. In skin biopsy material in epidermis cells with processes containing deep-brown granules in cytoplasm have been detected. What cells are these? *A. Melanocytes. B. Intraepidermal macrophages. 41 C. Keratinocytes. D.Merkel's cells. E. Lymphocytes. cells are occasionally visible. These are characteristic of which level of the epidermis? (A) Keratinized layer (B) Granular layer (C) Spinous layer (D) *Basal layer 233. Your dog ate your histology notes, so you were unable to prepare adequately for this exam. Now, as you face these impossible questions, your palms are dripping with sweat. What cutaneous appendages are responsible for this phenomenon? A. Sebaceous glands B. Meibomian glands C. Apocrine sweat glands D. *Eccrine sweat glands URINARY SYSTEM 239. In a specimen a dense network of capillaries located between two arterioles (rete mirabile) can be clearly seen. In what organ is it possible to find this network? A. Retina. B. Liver. C. Adrenal gland. D. Spleen. *E. Kidney. 234. Special cells, which carry out gas exchange, are present in alveoluses of the lungs. These cells are part of an air-blood barrier. What are these cells? A. Alveolar macrophages B. Clara cell C. *Type I pneumocytes. D. Type II pneumocytes Е. Microvillar (brush) cells 240. Normally, during a laboratory examination of urine blood elements are not detected in it. What nephron structure interferes with their getting into primary urine? *A. Basement membrane of glomerular capillaries. B. Juxtavascular cells. C. Mesangial cells. D. Epithelium of the external leaf of glomerular capsule. E. Epithelium of Henle's loop. 235. In medicolegal practice periodically it is necessary to made an identification of the person. For this purpose a method of dactyloscopy (dermatoglyphics) is used. Structure of what skin layer determines the individual epidermal ridges (individual fingerprints) of a human skin? A. Reticular layer of the dermis B. *Papillary layer of the dermis C. Epidermis D. Epidermis and dermis E. Epidermis, dermis and hypodermis 241. . Work in the mines is known to be connected with the inhalation of a significant amount of coal dust. In what pulmonary cells is it possible to detect coal dust? A. In the pericytes of capillaries. B. In respiratory epithelial cells. C. In secretory epithelial cells. D.In endotheliocytes of capillaries. *E. In alveolar macrophages. 236. Which one of the following describes the secretory mechanism by which sebum is produced? (A) Apocrine (B) Cytocrine (C) Eccrine (D) *Holocrine (E) Paracrine 242. Laboratory examination has shown subacid reaction of urine. What kidneys cells provide this reaction of urine? A. Cells of the dense macula of juxtaglomerular complex. B. Juxteglomerular cells of cortical nephrons. C. Juxtavascular cells of cortical nephrons. *D. Secretory cells of gathering tubules. E. Interstitial cells of stroma. 237. . Which of the following occurs after exposure to ultraviolet (UV) radiation? a. Reduced protection of the nuclei of dividing keratinocytes by melanin b. Lightening of melanin c. *Increased melanin synthesis d. Proliferation of melanocytes e. Decreased cytocrine secretion of melanin 243. In a kidney specimen nephrons are detected on the border of cortical and medullary substance with identical diameter of afferent and efferent arterioles. What function will be damaged in case of their affection? A. Synthesis of renin. 238. . In a routine histologic section of skin showing a full thickness of epidermis, mitotic 42 *B. Shunting of blood accompanied by intensive blood circulation. C. Synthesis of prostaglandins. D. Synthesis of erythropoietin. E. Activity of sodium (Na+) receptor. D.Mesonephrogenic duct. *E. Mesonephrogenic duct diverticulum, methanephrogenic tissue. 249. Clinical examination of a 35-yearold female with renal disease has detected in the urine blood cells, fibrinogen, probably because of renal filter failure. Of what structures is this filter formed? A. Trilaminar basic membrane. *B. Endothelium of glomerular capillaries, trilaminar basic membrane, podocytes. C. Endothelium of capillaries, basic membrane. D.Podocytes, basic membrane. E. Endothelium, podocytes. 244. In an electronic micrograph of a nephron part there are detected cells of cubic form, the apical surface of which contains brush border, and the basal - basal banding with mitochondria between invaginations of cytolemma. Name the department of nephron. A. Distal tubule. B. Gathering tubule. *C. Proximal tubule. D.Thin tubule. E. Capsule of the glomerule. 250. Electron microscopy of a kidney has detected tubules lined with cuboidal epithelium. There are light and dark cells in the epithelium. Light cells have few organelles, cytoplasm forms folds. These cells provide reabsorption of water from primary urine into blood. Dark cells resemble parietal cells of stomach by structure and function. What tubules are presented? *A. Connecting tubules. B. Proximal tubules. C. Distal tubules. D. Ascending tubules of Henle's loop. E. Descending tubules of Henle's loop. 245. Kidney endocrine complex cells are located under endothelium in the wall of afferent and efferent arterioles; in the cytoplasm these cells contain granules of renin, which assists the rise of blood pressure. What cells are these? A. Mesangial cells. B. Hurmagtig's cells. C. Dense macula cells. *D. Juxteglomerular cells. E. Interstitial cells. 246. In urine analysis epithelial cells of the thin tubule of nephron are detected. With what epithelium is the wall of this nephron tubule covered? A. Columnar ciliated. B. Cuboidal. C. Cuboidal ciliated. D. Columnar. *E. Simple squamous. 251. Leached erythrocytes have been detected in a patient's urine analysis. What is the localization of the pathological process predetermining such changes? A. Gathering tubules. B. Proximal part of nephron. *C. Filtration barrier. D. Distal part of nephron. E. Thin part of nephron. 247. In a kidney histological specimen there has been presented a site of a distal tubule of nephron located between afferent and efferent arterioles. In the cells, which form the tubule wall, nuclei are thickened, basic membrane is absent. Name this structural formation. A. Hurmagtig's cells. *B. Dense macula cells. C. Mesangial cells. D.Juxtavascular cells. E. Juxtaglomerular cells. 252. Anemia of a 50-year-old patient with chronic nephritis has developed. What is the main reason for this? *A. Reduction of erythropoietin production. B. Absence of the gland. C. Absence of vitamin B12. D. Disorder of porphyrin synthesis. E. Immunologic damage of immature cells of erythropoiesis. 248. Anlage of metanephros occurs during the second month of embryoge-nesis. What are the sources of its formation? A. Segment peduncles. B. Segment peduncles, nephrogenic tissue. C. Nephrogenic tissue. 253. Sugar is detected in the urine of a 30-year-old patient, its amount in blood being normal. What structure functional mechanisms of the kidney are violated? A. Filtration process. 43 *B. Reabsorption process in the proximal part of nephron. C. Reabsorption process in the distal part of nephron. D. Reabsorption process in the thin tubule. E. Reabsorption process in the distal part as a result of vasopressin secretion insufficiency. MALE REPRODUCTIVE SYSTEM 259. Boy 5 years old with the symptoms of early sexual development are found out happening. At the examination a tumour of testis is exposed. What cells is a tumour formed from? A.Fibroblasts B.spermatogones C.cells of Sertoli D.primary spermatocytes E.*cells of Leydig 254. . An electron micrograph of one part of nephron shows cuboidal cells, apical surface of which contains a brush border, and basal surface has basal striations with mitochondria located between invagination of cytolemma. What part of nephron is this? A. Distal tubule B. Collecting tubule C. *Proximal tubule D. Thin segment of the loop of Henle E. Renal capsule 260. At man 20 years old with the decrease of the FSH production is exposed. What change will happen in the testis? A.spermatogenesis increase B.no changes in spermatogenesis C.*spermatogenesis stops D.Atrophy of Leydig cells E.atrophy of Sertoli cells 255. A small protein (approximately 30,000 daltons) passes through the glomerular basement membrane into the glomerular filtrate. Cells of which of the following tissues would remove the protein from the filtrate? (A) Visceral epithelium of the renal corpuscle (B) Distal convoluted tubule (C) Glomerular mesangium (D) *Proximal convoluted tubuie (E) Parietal layer of the renal corpuscle 261. A man 20 years appealed to the centre engaged in the problem of sterile marriages. This patient has a problem: decrease of LH production. Synthesis of what hormone of the testis is broken? A.inhibins B.follitropine C.Androgen binding protein D.*testosterone E.estradiole 256. . Identification of a macula densa in a section of kidney also identifies an example of a (A) proximal tubule (B) loop of Henle (C) *distal tubule (D) collecting duct (E) papillary duct 262. At men long time working in hot workshops without the special defense (steelmakers, rolls) aspermatogenesis develops . What temperature the testis need for the normal process of spermatogenesis? A.*34°C B.36.6°C C.36.8°C D.37°C E.37.2°C 257. The greatest reduction in volume of initial glomerular filtrate occurs in which of the following structures? (A) Urinary space of the renal capsule (B) Proximal convoluted tubule (C) Distal convoluted tubule (D) Collecting duct (E) *Loop of Henle 263. In preparation of cross section of tubule of male reproductive system in an inner covering epithelium the groups of high ciliary cells and low cuboidal cells, are founded. Cuboidal cells have apocrine type of secretion, What department of male reproductive system is represented? A.straight tubules B.rete testis C.seminiferous tubules D.*ductuli efferentes E.ductus deferens 258. Renin is secreted by (A) proximal tubule cells (B) visceral epithelial cells (C) modified distal tubule cells (D) gastric mucosal cells (E) *modified vascular smooth muscle cells 264. It is known, that suppression of synthesis of androgenes result impotence. 44 Hypersecretion of what hormone is the cause of this process? A.Prolactine B.progesterone C.Inhibine D.*Gonadostatine E.somatostatine A. Sertoli cells. B. Sustentocytes. C. Sustentacular cells. *D. Spermatogones. E. Leidig cells. 270. The changes of nucleus and cytoplasm of spermatids are observed during one of the phases of spermatogenesis. These changes predetermine the formation of mature sex cells. What gametogenesis phase is meant? A. Proliferation. B. Maturation. C. Growth. D. Reproduction. *E. Formation. 265. In the section of the testis in the epithelium of seminiferous tubules only Leydig cells and spermatogonii are founded. What is the age of man? A.*1 month B.8 years C.15 years D.25 years E.80 years 271. The primary energy source (fructose) for sperm in semen is secreted by: A. the seminal vesicle. B. the prostate gland. C. the bulbourethral gland. D. *the epididymis. 266. An undescended testis of a prepubertal male is removed since it is at higher risk to develop testicular cancer. Histologic analysis reveals that cells of the germ line in this testis have have advanced as far as which of the following stages of development? A.Primordial germ cell B.*Spermatogonium C.Primary spermatocyte D.Secondary spermatocyte E.Definitive spermatocyte 272. Because spermatogonia don't begin to divide and produce spermatocytes until puberty, spermatocyte-and sperm-specific proteins are not present for a significant portion of the time when the immune system is eliminating self-reactive cells. Thus, it is not impossible to find sexually mature males with high levels of anti-sperm antibodies. Such antibodies can be shown to react against and interfere with sperm in vitro. These same males, however, are not necessarily infertile due to features of: A. spermatogonia. B. myoepithelial cells. C. endothelial cells. D. Leydig cells. E. *Sertoli cells. 267. A family couple complains of being infertile. Examination revealed that the man's spermatogenic epithelium of testicle has been affected, that led to the absence of spermatozoa in seminal fluid, and consequently to barrenness. What part of testicle has been damaged? A. Straight seminiferous tubules. *B. Convoluted seminiferous tubules. C. Rete testis. D. Duct of epididymis. E. Efferent duct of testicle. 273. Which of the following cells is the first, or earliest, member of the series that will contain either an X or Y chromosome, but not both, in its prophase nucleus? A. Type A spermatogonium. B. *Type B spermatogonium. C. Primary spermatocyte. D. Secondary spermatocyte. E. Early spermatid. 268. As a result of a mechanical injury of scrotum a patient has disorders of the network of testis epithelial lining. What epithelium is damaged? A. Ciliated. *B. Simple cuboidal. C. Simple columnar. D. Double layer. E. Transitional. 269. Insufficient quantity of spermatozoa is detected during a seminal fluid analysis of a 25-year-old patient. What cells of male sex glands, dividing, provide a sufficient quantity of spermatozoa for fertilization? 274. . In semen, what is the primary energy source for the spermatozoa? A. *Fructose produced in seminal vesicles B. Fructose produced in bulbourethral glands C. ATP produced in bulbourethral glands 45 D. Glucose produced in prostate gland E. ATP produced in prostate gland 275. A man 20 years appealed to the centre engaged in the problem of sterile marriages. This patient has a problem: decrease of LH production. Synthesis of what hormone of the testis is broken? A inhibins B follitropine C Androgen binding protein D *testosterone E estradiole contain either an X or Y chromosome, but not both, in its prophase nucleus? A. Type A spermatogonium. B. Type B spermatogonium. C. Primary spermatocyte. D. Secondary spermatocyte. E. Early spermatid. 281. The genetically and immunologically distinct secondary spermatocytes and spermatids are in a compartment that is isolated from the immune system by the blood-testis barrier, The barrier is formed by which one of the following? (A) Basal laminae of seminiferous tubules (B) * Tight junctions between Sertoli cells (C) Cytoplasmic bridges between spermatocytes (D) Myoid cells subtending the seminiferous tubules (E) Gap junctions between type B spermatogonia 276. Which of the following pituitary hormones is the principal controlling factor in regulating the interstitial endocrine cells (Leydig cells) of the testis? A GH B TSH C *LH D MSH E FSH FEMALE REPRODUCTIVE SYSTEM 282. A female patient with unexplained infertility is treated with menopausal gonadotropin and pure follicle stimulating hormone to induce follicular development. Several oocytes are aspirated from enlarged follicles and cultured in nutrient medium until they reach the normal second stage of meiotic arrest before they are fertilized. Fertilization is therefore carried out at which of the following stages of oocyte development? A.Metaphase of the primary oocyte B.*Prophase of the Secondary oocyte C.Metaphase of the Secondary oocyte D.Prophase of the definitive oocyte E.Metaphase of the definitive oocyte 277. Sperm sells in the human male begin to differentiate at which of the following points in development? A At 5 month of fetal life B As soon as the embryonic Leydig cells secrete androgens C *At puberty D As soon as primordial germ cells enter the genital ridge E At birth 278. As you study slides of the male reproductive system you see epithelial tissue that contains both proliferative cells at varied stages of differentiation and non-proliferative cells. What part of the reproductive system is this? A. *Post-pubertal testis B. Aged prostate C. Pre-pubertal seminal vesicle D. Sexually mature ductus deferens E. Immature bulbourethral gland 283. Injection of urine of expectant mother to mice (before puberty) causes the multiple folliculogenesis in ovary. What substance containing in urine does determine this effect? A.estryole B.testosterone C.tyroliberine D.prolactine E.*chorional gonadotropic 279. This gland within the male reproductive system has both pseudostratified and transitional epithelium and contributes proteolytic enzymes to the semen: A. Bulbourethral gland B. *Prostate C. Seminal Vesicle D. Ductuli efferentes E. Epididymis 284. The blood test of woman shows a high level of estrogens. What cells synthesize a basic amount of estrogens? A.interstitial cells of ovary B.follicular cells of primary follicles C.*follicular cells of secondary follicles D.follicular cells of primordial follicles E.mesothelium 280. Which of the following cells is the first, or earliest, member of the series that will 46 285. On medicolegal assessment the dead body of unknown woman was delivered. On a section in an ovary the rounded formation by a diameter about 5 sm was found, containing the yellow pigment. Pathological changes are not discovered in the ovary. What cells does this formation consist of? A.Follicular B.Myoid C.Fibroblasts D.*Luteal E.Interstitial some oocytes contain two copies of chromosome 21 while others contain no copies of chromosome 21. The woman displays none of the characteristics of Down syndrome and so the nondisjunction that resulted in this condition must have occurred in which of the following cells? A.Primary oocyte in her mother's germline B.Secondary oocyte in her mother's germline germline C.Blastomere in her mother's germline D.*Secondary oocyte in her own germline E.Blastomere in her own germ line 286. Oogonia reach their maximum number at which of the following stages of human development? A.*Five months of fetal life B.Birth C.Puberty (f 2 to 14 years of age) D.Adolescence (16 to 20 years of age) E.Early adulthood (21 to 26 years of age) 291. A female patient spontaneously aborts a hydatidiform mole. Follow-up monitoring of which of the following hormones is typically carried out to definitively reveal whether or not any remnants of the mole remain? A.Estrogen B.Adrenocortical hormone C.*Human chorionic gonadotropin D.Follicle stimulating hormone E.Progesterone 287. Primordial follicles of the ovary possess A.layer of cuboidal follicular cells B.*an oocyte arrested in prophase of meiosis I C.an oocyte arrested in metaphase of meiosis II D.well-defined thecae interna and externa E.a thick zona pellucida 292. In a month after childbirth the woman of 25 years old appealed to the doctor with a complaint about decrease of amount of milk. The lack of what hormone did result in such state? A. Glucagon. B. Corticotropin C. Somatostatin. D. Insulin. E.*ProlactinA 288. The secondary oocytic enters the second meiotic division and proceeds as far as metaphase. The stimulus required for continuation of the second meiotic division to produce the haploid ovum is A.Elevation of progesterone tilers B.The environment of the oviduct and uterus C.Expulsion from the mature follicle D.*Fertilization by a spermatozoon E.The presence of human chorionic gonadotropin (hCG) 293. Atretic bodies and developed yellow body are detected in an ovary specimen next to follicles of different order. To what phase of ovarian-menstrual cycle does such condition correspond? A. Regenerative. B. Menstrual. C. Postmenstrual. *D. Premenstrual. E. Follicle growth. 289. Ultrasound examination of an anovulatory patient with polycystic ovary syndrome (PCOS) reveals that her ovaries contain multiple enlarged but immature follicles. The oocytes within these follicles have advanced to which of the following stages of meiosis? *A.First meiotic prophase B.First meiotic metaphase C.Second meiotic prophase D.Second meiotic metaphase E.Pronuclear stage 294. Normal implantation of a human embryo is possible only in case of appropriate changes of endometrium. What cells of endometrium increase quantitatively in this case? *A. Decidual cells. B. Fibroblasts. C. Neurons. D. Macrophages. E. Myocytes. 290. Chromosome analysis is carried out on the polar bodies of a woman for screening prior to in vitro fertilization. Polar bodies removed from 47 295. In a woman's blood a large quantity of estrogens has been found. What cells synthesize the basic quantity of estrogens? A. Ovocytes. *B. Interstitial and follicular cells of secondary follicles. C. Follicular cells of primary follicles. D. Follicular cells of the primordial follicles. E. Follicular cells and ovocytes. not observed; there are decidual cells in stroma. What stage of menstrual cycle is described? A. Proliferative. B. Menstrual. C. Regenerative. *D. Secretory (premenstrual). E. Relative rest. 301. Microscopic examination of endometrium biopsy material of a woman suffering from infertility has shown changes in endometrium construction caused by the influence of progesterone. Where is this hormone produced? A. In follicles of ovary. *B. In corpus luteum of ovary. C. In adenohypophysis. D.In neurohypophysis. E. In hypothalamus. 296. Anovular menstrual cycle of a female patient is detected. What process from the listed below does not take place? *A. Rupture of follicle and outlet of ovocyte into abdominal cavity. B. Reconstruction of follicle after ovocyte's death. C. Reproduction of granular layer cells. D. Accumulation of lutein in follicular cells. E. Decrease of mature follicle volume. 302. As a pin passes from the nucleus of a developing oocyte into the surrounding ovarian tissue it would encounter the following layers in what sequence: 1 = Nuclear membrane 2 = Theca interna 3 = Zona pellucida 4 = Granulosa or follicular cells 5 = Theca externa 6 = Basement membrane A. 1-2-3-4-5-6 B. 1-4-5-6-2-3 C.* 1-3-4-6-2-5 D. 1-3-2-4-5-6 E. 1-3-2-5-4-6 297. A bleeding after a delivery may be stopped by hormones action on uterus structures. One component of uterus wall takes part in this process more than others. Name this component. A. Endometrium. *B. Myometrium middle layer. C. Myometrium internal layer. D.Myometrium superficial layer. E. Perimetrium. 298. The bleeding stop following a delivery is connected with the action of oxytocin on the wall of uterus. What tunica of the organ reacts to this action? A. Perimetrium. B. Endometrium. *C. Myometrium. D. Parametrium. E. Submucous layer. 303. During the average menstrual cycle, LH and FSH levels are highest A. during the proliferative phase B. on day one of the cycle C. during the luteal (secretory) phase D.* immediately prior to ovulation E. during the menstrual phase 299. Internal female genital organs were removed in the course of an operation. Microscopic examination of these organs has shown an embryo consisting of two blastomeres. Name the place of its localization in the conditions of normal development. A. Cavity of uterus. B. Uterine part of uterine tube. *C. Ampulla part of uterine tube. D. Abdominal cavity. E. Ovary. 304. . A woman, 25 years, a month later after child-birth, has consulted the doctor with the problem of decrease in quantity of milk. A deficiency of what hormone has made such condition? A. Glucagon B. Corticotrophin C. Somatostatin D. Insulin E. *Prolactin 300. Histopathologic feature of endometrium has such typical signs: thickening, edema, sinuous glands with dilated lumen which secrete a big amount of mucus; mitoses in cells are 305. Low estrogens concentration and high concentration of progesterone are detected in the blood test of a nonpregnant 26-year-old woman. 48 С. Fibroblasts D. *Luteal Е. Interstitial At what ovarian-menstrual cycle phase was the test done? A. Postmenstrual (proliferative). B. Menstrual. *C. Premenstrual (secretory). D.Phase of desquamation. E. Phase of endometrium proliferation. 311. . The antrum of a maturing ovarian follicle is denoted by which of one of the following characteristics? A Thickening of the zona pellucida B *Hypertrophy of the theca interna C Dilatation of an intercellular space D Vacuolization of the theca externa 306. At microscopic research of biopsy material of endometrium of women with sterility (infecundity) morphological changes are revealed in its structure. These are caused by action of a progesterone. Where is this hormone produced? A. In ovarian follicle B. *In corpus luteum of ovary C. In adenohypophysis D. In neurohypophysis Е. In hypothalamus 312. Which of the following steps is critical for ovulation? A *Prior completion of the second meiotic division B Elevated levels of progesterone and estrogens C Loss of oocyte-granulosa cell gap junctions D Surge in the secretion of luteinizing hormone 307. A lady of 32 becomes pregnant. The ovum, which was fertilized, was probably derived from an oogonium A 2 weeks ago B 2 months ago C 20 years ago D* more than 30 years ago E at any time since puberty 313. Oogonia, derived from primordial germ cells, divide by mitosis during A. all postnatal periods B. *early fetal life C. postnatal periods after puberty D. the first two weeks of embryonic development E. the proliferative phase of the menstrual cycle 308. Where and when does fertilization normally occur? A. Ovary, immediately after ovulation B. Vagina, within 12 hours after ovulation C. Internal os of the uterus, within 1 day after ovulation D. *Ampulla of the oviduct, within 1 day after ovulation E. Anterior wall of the uterine body, within 2 days after ovulation 314. The growth of the endometrium during the proliferative phase depends on the influence of estrogens. What cells of the female ovary produce the androgens that are subsequently converted into these estrogens? A. *Theca interna B. Granulosa C. Theca externa D. Corona radiata E. Cumulus oophorus 309. The blood test of woman shows a high level of estrogens. What cells synthesize a main amount of estrogens? A interstitial cells of ovary B follicular cells of primary follicles C* follicular cells of secondary follicles D follicular cells of primordial follicles E mesothelium 315. A couple comes to consult you about some fertility questions. They are making a fertility calendar and are wondering during what phase of the menstrual cycle will fertilization and implantation most likely occur. What do you tell them? A. During the proliferative phase B. During the menstrual phase C. During the menarche phase D. *During the luteal phase 310. . On medicolegal assessment the dead body of unknown woman was delivered. On a section in an ovary the rounded formation by a diameter about 5 sm was found, containing the yellow pigment. Pathological changes are not discovered in the ovary. What cells does this formation consist of? А. Follicular В. Myoid 316. An oocyte found in the ampula of a fallopian tube of a celibate woman is reffered to as A oogonium B primary oocyte C *secondary oocyte D ovum 49 E zygote 317. The maximum number of oocytes that will ever occur in an ovary are found at what stage of development? A *18-week-olg fetus B 1-week-old infant C 7-year-old child D 20-year-old woman E 55-year-old woman 318. A histologic section of endometrium containing examples of straight tubular glands is characteristic of which phase of the menstrual cycle? (A) Luteal (B) Menstrual (C) *Premenstrual (D) Proliferative (E) Secretory 50