LABORATORY EXERCISE 1 EPITHELIAL TISSUE indexed to Ross &Pawlina Histology: A Text and Atlas (5th edition, 2006) R & P (page number) plate #, & figures Slides numbers from histology slide boxes 1. Simple Cuboidal (678) Plate 72, Fig. 1-2 Slide 2, Kidney 2. Simple Columnar (608) Plate 63, Fig. 2 Slide 57, Gall bladder 3. Simple Squamous Plate 1, Fig. 2. (140) Slide 1, Squamous epithelium 4. Pseudostratified columnar Plate 2, Fig. 4 (142) Fig. 5. Slide 4, Trachea Slide 72, Epididymis 5. Stratified squamous Plate 2, Fig. 6 (142) Slide 5, Tongue Slide 6, Skin, sole Slide 73, Vagina 6. Stratified cuboidal Plate 3, Fig. 2 (144) Slide 7, Scalp Plate 38, Fig. 1 (464) 7. Transitional Plate 3, Fig. 4 (144) (look for sweat glands ducts) Slide 8, Bladder (urinary) 1 LABORATORY EXERCISE 2 CONNECTIVE TISSUE and ADIPOSE TISSUE 1. Loose Connective tissue (176) Plate 4, Figs. 1-4 Slide 65, Inactive mammary gland Slide 73, Vagina Slide 6, Skin, sole (also note adipose tissue) 2. Dense Irregular Connective Tissue (466) Plate 39, Fig. 3 Slide 6, Skin, sole 3. Dense Regular Connective Tissue (178) Plate 5, Fig. 1-2 Slide 13, Tendon 4. Elastic fibers (180) Plate 6, Fig. 2 Slide 10, Areolar tissue spread Fig. 3. Slide 39, Aorta (H&E does not show elastic lamellae well..... look at silver stained slides) 5. Reticular fibers Text, p. 159, Fig. 6.12 Slide 9, Lymph node Plate 33 (432) Fig. 2 (best seen in silver stained slides) 6. Hyaline cartilage (194) Plate 7, Fig. 1-3 Slide 15, Developing endochondral bone 7. Elastic cartilage (198) Plate 9, Fig. 1-2 Slide 16, Elastic cartilage 8. Fibrocartilage (200) Plate 10, Figs. 1 & 2 Slide 17, Fibrous cartilage 9. Adipose Tissue Text, p. 242, Fig. 9.2 Slide 6, Skin, sole Text, p. 456, Fig.15.14 Slide 7, Scalp 2 (our slides don’t look like text figures) LABORATORY EXERCISE 3 CARTILAGE and BONE CARTILAGE (see 6-8 of Laboratory Exercise 2) BONE 1. Compact bone (228) Plate 11, Figs. 1-3 Slide 18, Bone ground 2. Spongy bone and Compact Bone (230) Plate 12, Fig. 1-2 Slide 19, Developing intramembranous bone 3. Intramembranous ossification (236) Plate 15, Figs. 1-3 Slide 19, Developing intramembranous bone 4. Endochondral ossification (232 and 234) Plate 13, Figs. 1 & 2 Slide 15, Developing endochondral bone Plate 14, Figs. 1 & 2 Slide 15, Developing endochondral bone See also Fig. 8.17 p. 219 See also Fig. 8.19 p. 221 3 LABORATORY EXERCISE 4 Caution: Take every precaution to avoid getting immersion oil on microscope lenses other than the 100X objective! It is easy to unintentionally spread immersion oil to the 40X objective which renders that lens useless until it is thoroughly cleaned. At the beginning of lab, students will be shown the proper technique for using oil immersion. At the end of lab, the professor will have each student verify that the 40x objective has not been affected by oil. Each student will examine a blood smear slide and classify 100 leukocytes to gain practice identifying lymphocytes, monocytes, basophils, eosinophils, and neutrophils. Data from all students will be compiled to determine if the percentages of leukocytes counted in our slides agree with percentages stated in the text. BLOOD and MUSCLE 1. Blood Plate 16, all figures (276) Plate 17, all figures (278) Slide 20, Blood smear (examine with oil @ 100x) Slide 20, Blood smear MUSCLE 1. Skeletal muscle Plate 18, Figs. 1-3 (308) 2. Cardiac muscle Plate 20, Figs, 1-4 (312) 3. Smooth muscle Plate 22, Figs. 1-4 (316) Lymphocytes Slide 24, Skeletal muscle (ls) (examine with oil @ 100x) Slide 25, Skeletal muscle (xs) Slide 26, Cardiac muscle Slide 22, Smooth muscle; Slide 23, Uterus Monocytes Neutrophils total percentage observed percentage expected (from text) 4 Eosinophils Basophils LABORATORY EXERCISE 5 BLOOD VESSELS (Consult "Aids for Identification of Blood Vessels" on next page.) Clarifications will be provided at the beginning of the laboratory. Caution: Our criteria for vessel identification do not necessarily coincide with the naming of vessels on the Downing laser disc. Use our classification scheme, not that of the Downing disc. Note: The fundic stomach slide is used to search for arterioles, capillaries, and venules. Other types of blood vessels may be present as well. 1. Arterioles Plate 31, Fig. 1-2 (394) Slide 37, Fundic stomach 2. Capillaries Plate 53, Fig. 2 (560) Slide 37, Fundic stomach Legend for Figure 2 does not mention capillaries. Look for capillaries which should be numerous in the connective tissue just deep to the gastric glands. 3. Venule Plate 53, Fig. 2 (560) Slide 37, Fundic stomach Venules not mentioned in figure legend. Be able to distinguish postcapillary venules from muscular venules. 4. Muscular arteries and Veins Plate 30, Fig. 1-3 (392) Slide 38, Artery and vein Point of Clarification: Text uses Internal and External Elastic Membrane, Plates use Internal & External Elastic Lamina 5. Elastic artery Plate 29, Figs. 1-6 (390) 6. Lymphatic vessel Plate 31, Fig. 3-4 (394) Plate 56, Fig. 2 (566) Slide 39, Aorta Slide 51, Ileum (look for lacteals in villus; difficult to see.) 5 AIDS FOR INDENTIFICATION OF BLOOD VESSEL TYPES Due to the confusion arising from the differences in vessel classification between our textbook and the barcode guide to the laserdisk images, we will follow the textbook's criteria for vessel type identification. ELASTIC ARTERIES massive layer of elastic tissues in the tunica media internal elastic membrane present MUSCULAR ARTERIES massive layer of smooth muscle in the tunica media Internal elastic membrane prominent External elastic membrane present SMALL ARTERIES 3-8 layers of circularly arranged smooth muscles in the tunica media Internal elastic membrane present wall thickness approximately same as lumen diameter ARTERIOLES 1-2 layers of circularly arranged smooth muscles in the tunica media Internal elastic membrane may be absent CAPILLARY wall consists of a simple squamous epithelium (endothelium) no other tunics present. internal diameter is about 10 micrometers. POSTCAPILLARY VENULES larger diameter than capillary wall consists of endothelium plus pericytes MUSCULAR VENULES like postcapillary venules but with at most 2 layers of smooth muscle larger lumen than arteriole VEINS (no attempt to distinguish between large and medium veins) tunica media much thinner than comparable artery frequently the lumen is partially collapsed and larger than comparable artery no internal elastic membrane wall thickness much less that diameter of the lumen 6 LABORATORY EXERCISE 6 NERVOUS TISSUE 1. Nerve cells of ganglia Plate 23, Fig. 3 & 4 (354) Slide 29, Spinal ganglion (DRG) (most are silver stained) We will compare and contrast with autonomic ganglia during laserdisc review. Read Figure legends for 1 & 2 to learn about Autonomic Ganglia. 2. Structure of peripheral nerve Plate 24, Figs. 1-4 (356) (use oil immersion) Slide 30, Human nerve Slide 31, Nerve fibers 3. Cerebrum Plate 25, Fig. 1 (358) Slide 76, Cerebrum (silver stain) Correction: Substitute “neurons” for “nerve” in text at top of page in yellow box. 4. Cerebellum Plate 26, Fig. 1-4 (360) 5. Spinal cord Plate 27, Figs. 1-3 (362) 6. Sensory nerve endings Plate 42, Fig. 1-4 (472) 7. Motor nerve ending Plate 19, Fig 3 (310) 8. Neuroglia see text p. 333-338 Fig. 12.19 and 12.20 Slide 75, Cerebellum Slide 28, Spinal cord Slide 27, Nerve cells, ox (a smear prep, not sectioned) Slide 32, Meissner's corpuscle (not obvious on all slides) Slide 33, Pacinian corpuscle (find with low power) Slide 34, Motor nerve ending Slide 35, Protoplasmic astrocytes Slide 36, Fibrous astrocytes No slide for microglia Be sure to identify Schmidt-Lantermann clefts (p. 330 Fig. 12.10B), Purkinje cells, pyramidal cells, and molecular layer and granular layer of cerebellum in videodisc images. Know the differences between silver, Nissl, osmium, and Golgi stains. 7 LABORATORY EXERCISE 7 LYMPHOID ORGANS and SKIN 1. Lymph node Plate 33, Figs. 1 & 2 (432) Plate 34, Figs. 1-3 (434) Slide 42, Lymph node Slide 9, Lymph node, reticular Slide 42, Lymph node Slide 9, Lymph node, reticular 2. Spleen Plate 35, Figs. 1-3 (436) Plate 36, Figs. 1-3 (438) Slide 43, Spleen Slide 43, Spleen 3. Thymus Plate 37, Figs. 1-3 (440) Slide 44, Thymus SKIN 1. Thick skin Plate 38, Fig. 1 (464) Slide 6, Skin 2. Thin skin Plate 38, Figs. 2 & 3 (464) Plate 39, Fig. 1-3 (466) Plate 41, Figs. 1-3 (470) Slide 7, Scalp Slide 7, Scalp Slide 7, Scalp Lymph nodes subcapsular sinus efferent lymphatic vessel cortex reticular cells trabecular sinus lymphatic nodules medullary cords post-capillary venules afferent lymphatic vessel germinal center medullary sinus hilus Spleen red pulp germinal center capsule stave cell white pulp PALS trabecular vein cords of Billroth central artery myofibroblasts venous sinus Thymus epithelioreticular cells cortex Hassall's corpuscles medulla 8 LABORATORY EXERCISE 8 ORAL CAVITY and DIGESTIVE SYSTEM I ORAL CAVITY 1. Tongue Plate 45, Figs. 1&2 (508) Plate 46, Figs. 1&2 (510) 2. Teeth Page 485, Fig. 16.7 Page 488, Fig. 16.10 Page 489, Fig. 16.11 Page 490, Fig. 16.13 Page 492, Fig. 16.16 Slide 5, Tongue Slide 5, Tongue Demonstration, Tooth Slide 78, Developing Tooth Demonstration, Tooth Slide 45, Tooth in situ Slide 45, Tooth in situ Slide 78, Developing tooth DIGESTIVE SYSTEM 1. Esophagus Plate 50, Figs. 1 & 2 (554) Slide 46, Esophagus 2. Esophogastric junction Plate 51, Fig. 1 (556) Slide 47, Esophagus and stomach 3. Stomach Plate 51, Figs. 2-4 (556) Plate 52, Figs. 1-3 (558) Plate 53, Figs. 1-4 (560) Plate 54, Figs. 2&3 (562) Slide 47, Esophagus and stomach Slide 37, Fundic stomach Slide 37, Fundic stomach Slide 48, Pyloric stomach Look at tooth slide without microscope: identify gingiva, gingival sulcus, alveolar bone, and alveolus. 9 LABORATORY EXERCISE 9 DIGESTIVE SYSTEM CONTINUED and GLANDS OF THE DIGESTIVE TRACT 1. Small intestine Plate 55, Figs. 1&2 (564) Plate 56, Figs. 1-3 (566) Plate 57, Figs. 1-3 (568) 2. Large Intestine Plate 58, Figs. 1,2,4 (570) Slide 49, Duodenum Slide 3, Duodenum Slide 49, Jejunum (Fig 1 is ls, our slides are cs) Slide 50, Jejunum Slide 49, Ileum Slide 51, Ileum Slide 52, Colon GLANDS OF THE DIGESTIVE TRACT 1. Salivary glands Plate 47, Fig. 2 (512) Plate 48, Fig. 2 (514) Slide 54, Submandibular gland Slide 53, Parotid gland Slide 77, 3 types of salivary glands 2. Liver and Gallbladder Plate 61, Figs. 1&2 (604) Slide 56, Liver Warning: It is difficult to distinguish Plate 62, Figs. 1&2 (606) Slide 56, Liver hepatocytes in poorly perfused liver tissue. Plate 63, Figs. 1-4 (608) Slide 57, Gallbladder 3. Pancreas Plate 64, Figs. 1&2 (610) Slide 55, Pancreas 10 LABORATORY EXERCISE 10 RESPIRATORY SYSTEM and URINARY SYSTEM RESPIRATORY SYSTEM 1. Trachea Plate 67, Figs. 1-3 (640) Slide 4, Trachea (oil immersion to see cilia & basal bodies) 2. Lung Plate 68, Figs. 1-3 (642) Plate 69, Figs. 1-4 (644) Slide 58 & 81, Lung Slide 58 & 81, Lung (oil immersion to see Type I & II alveolar cells, Clara cells) Slide 80, Emphysema (note size of alveoli) Slide 79, Smoker’s lung (look for carbon particles) URINARY SYSTEM 1. Kidney Plate 71, Figs. 1-2 (676) Plate 72, Figs. 1-4 (678) Plate 73, Figs. 1&2 (680) Slide 2, Kidney Slide 2, Kidney Slide 2, Kidney 2. Ureter Plate 74, Figs. 1-2 (682) Slide 59, Ureter 3. Urinary bladder Plate 75, Figs. 1-3 (684) Slide 8, Bladder 11 LABORATORY EXERCISE 11 MALE REPRODUCTIVE SYSTEM 1. Seminiferous tubules Plate 82, Figs. 1&2 (760) Page 734, Text figure 22.6 Slide 41, Testis (oil immersion***) 2. Epididymis Plate 84, Figs. 1&2 (764) Slide 72, Epididymis 3. Ductus (vas) deferens Plate 85, Figs. 1&2 (766) Slide 60, Ductus deferens 4. Prostate gland Plate 86, Figs. 1-2 (768) Slide 62, Prostate 5. Seminal vesicles Plate 87, Figs. 1&2 (770) Slide 61, Seminal vesicle FEMALE REPRODUCTIVE SYSTEM 1. Ovary Plate 88, Figs. 1-4 (810) Plate 89, Figs. 1-5 (812) Slide 63, Ovary Slide 63, Ovary 2. Corpus luteum Plate 90, Figs. 1-4 (814) Slide 64, Corpus luteum 3. Uterus Plate 92, Figs. 1&2 (818) Plate 93, Figs. 1&2, (820) 4. Mammary gland Plate 98, Figs. 1&2 (830) Plate 99, Figs. 1&2 (832) @@@ Slide 23, Uterus Slide 65, Mammary gland, inactive Slide 66, Mammary gland, active *** find spermatogonia, primary spermatocytes, early spermatids, late spermatids, spermatozoa, Sertoli cells, Leydig cells. @@@ find primordial follicles, primary follicles, secondary follicles, Graafian follicles, and atretic follicles. Be able to correlate stages in the ovary (follicular and luteal) to stages in the uterus (proliferative, secretory, and menstrual) and the hormones responsible (p. 787) 12 LABORATORY EXERCISE 12 ENDOCRINE GLANDS and ORGANS OF SPECIAL SENSE ENDOCRINE GLANDS 1. Pituitary Plate 76, Fig. 1-3 (716) Slide 67, Pituitary (hypophysis) 2. Thyroid Plate 79, Fig. 2 (722) Slide 69, Thyroid gland 3. Adrenal gland Plate 80, Figs. 1-4 (724) Plate 81, Figs. 1 (726) Slide 68, Adrenal gland Slide 68, Adrenal gland ORGANS OF SPECIAL SENSE 1. Eye Plate 100, Fig. 1 (858) Plate 101, Figs. 1-2 (860) Plate 102, Figs. 1-2 (862) Plate 103, Figs. 1-7 (864) Slide 70, Eye Slide 70, Eye Slide 70, Eye Slide 70, Eye 2. Cochlea Plate 105, Figs. 1&2 (886) Slide 71, Cochlea 13