A&P Tutorial Exam 2 2014 T/F 1) Goblet cells are found within pseudostratified ciliated columnar epithelium. Answer: TRUE Diff: 2 Page Ref: 119 2) Epithelial tissues always exhibit polarity; that is, they have a free surface and a basal surface. Answer: TRUE Diff: 1 Page Ref: 118 3) Simple cuboidal epithelia are usually found in areas where secretion and absorption occur. Answer: TRUE Diff: 1 Page Ref: 120 4) Depending on the functional state of the bladder, transitional epithelium may resemble stratified squamous or stratified cuboidal epithelium. Answer: TRUE Diff: 2 Page Ref: 123; Fig. 4.3f 5) Squamous cells are flattened and scalelike when mature. Answer: TRUE Diff: 1 Page Ref: 119 Multiple Choice 6) Which of the following would be of most importance to goblet cells and other glandular epithelium? A) microvilli B) Golgi bodies C) lysosomes D) multiple nuclei Answer: B Diff: 3 Page Ref: 124; Fig. 4.4 7) The simple columnar epithelium that form absorptive cells of the digestive tract have which characteristic? A) dense microvilli B) a rich vascular supply C) fibroblasts D) cilia Answer: A Diff: 1 Page Ref: 120 8) Pseudostratified columnar epithelium ciliated variety ________. A) lines most of the respiratory tract B) aids in digestion C) possesses no goblet cells D) is not an epithelial classification Answer: A Diff: 2 Page Ref: 120-122 9) Which of the following is a single-celled layer of epithelium that forms the lining of serous membranes? A) pseudostratified columnar B) simple columnar C) simple squamous D) simple cuboidal Answer: C Diff: 1 Page Ref: 120-122 10) Which tissue type arises from all three embryonic germ layers? A) epithelial tissue B) connective tissue C) nervous tissue D) muscle tissue Answer: A Diff: 2 Page Ref: 118 11) Groups of cells that are similar in structure and perform a common or related function form a(n) ________. A) organ B) tissue C) organism D) organ system Answer: B Diff: 1 Page Ref: 116 12) Which of the following is true about epithelia? A) Simple epithelia are commonly found in areas of high abrasion. B) Stratified epithelia are associated with filtration. C) Endothelium provides a slick surface lining all hollow cardiovascular organs. D) Pseudostratified epithelia are commonly keratinized. Answer: C Diff: 2 Page Ref: 120 13) ________ epithelium appears to have two or three layers of cells, but all the cells are in contact with the basement membrane. A) Stratified cuboidal B) Stratified columnar C) Transitional D) Pseudostratified columnar Answer: D Diff: 1 Page Ref: 120-122 14) Select the correct statement regarding epithelia. A) Simple epithelia form impermeable barriers. B) Stratified epithelia are tall, narrow cells. C) Stratified epithelia are present where protection from abrasion is important. D) Pseudostratified epithelia consist of at least two layers of cells stacked on top of one another. Answer: C Diff: 2 Page Ref: 119 15) Which cells are commonly found wedged between simple columnar epithelial cells? A) goblet cells B) mast cells C) macrophages D) cilia Answer: A Diff: 1 Page Ref: 120 T/F 16) Joe just burned himself on a hot pot. A blister forms and the burn is painful. Joe's burn would best be described as a third-degree burn. Answer: FALSE Diff: 2 Page Ref: 165-166 17) The hyponychium is commonly called the cuticle. Answer: FALSE Diff: 1 Page Ref: 160 18) The reason that the nail bed appears pink is the presence of a large number of melanocytes in the underlying dermis. Answer: FALSE Diff: 2 Page Ref: 160 19) The most dangerous skin cancer is cancer of the melanocytes. Answer: TRUE Diff: 1 Page Ref: 164 20) The skin is not able to receive stimuli because the cells of the epidermis are not living and therefore there are no sensory receptors in the skin. Answer: FALSE Diff: 1 Page Ref: 163 21) When an individual is exposed to extremely low air temperatures, the dermal blood vessels will dilate so that blood and heat will be dissipated. Answer: FALSE Diff: 3 Page Ref: 163 22) Ceruminous glands are modified merocrine glands. Answer: FALSE Diff: 1 Page Ref: 161 23) Sweat glands continuously produce small amounts of sweat, even in cooler temperatures. Answer: TRUE Diff: 1 Page Ref: 160-161 Multiple Choice 24) Select the most correct statement concerning skin cancer. A) Most tumors that arise on the skin are malignant. B) Squamous cell carcinomas arise from the stratum corneum. C) Basal cell carcinomas are the least common but most malignant. D) Melanomas are rare but must be removed quickly to prevent them from metastasizing. Answer: D Diff: 1 Page Ref: 164 25) Acne is a disorder associated with ________. A) sweat glands B) sebaceous glands C) Meibomian glands D) ceruminous glands Answer: B Diff: 1 Page Ref: 162 26) Which of the following cutaneous receptors is specialized for the reception of touch or light pressure? A) Meissner's corpuscles B) Pacinian corpuscles C) free nerve endings D) Krause's end bulbs Answer: A Diff: 2 Page Ref: 163 27) Which of the following is a skin sensory receptor for touch? A) Pacinian corpuscle B) tactile corpuscle C) Ruffini body D) free nerve ending Answer: B Diff: 1 Page Ref: 163 28) The single most important risk for skin cancer is ________ A) race B) genetics C) use of farm chemicals D) overexposure to UV radiation Answer: D Diff: 2 Page Ref: 164 29) Which glands produce ear wax? A) Merocrine glands B) Apocrine glands C) Ceruminous glands D) Eccrine Glands Answer: C Diff: 2 Page Ref: 161 30) Which type of skin cancer appears as a scaly reddened papule and tends to grow rapidly and metastasize? A) Melanoma B) Squamous cell carcinoma C) Basal cell carcinoma D) Adenoma Answer: B Diff: 2 Page Ref: 164 Match the following: A) Spiral B) Comminuted C) Greenstick 31) An incomplete fracture or cracking of the bone without actual separation of the parts. Common in children. Diff: 1 Page Ref: 190; Tbl. 6.2 32) Bone fragments into many pieces. Diff: 1 Page Ref: 190; Tbl. 6.2 33) Common sports fracture resulting from a twisting force. Diff: 1 Page Ref: 190; Tbl. 6.2 Answers: 31) C 32) B 33) A T/F 34) The term osteoid refers to the organic part of the matrix of compact bones. Answer: TRUE Diff: 1 Page Ref: 183 35) Sixty-five percent of the mass of bone is a compound called hydroxyapatite. Answer: TRUE Diff: 1 Page Ref: 183 36) All bones stop growing by the end of adolescence. Answer: FALSE Diff: 2 Page Ref: 185-186 37) The hormone that is primarily involved in the control of bone remodeling is the parathyroid hormone. Answer: FALSE Diff: 2 Page Ref: 187 38) Closure of the epiphyseal plate stops all bone growth. Answer: FALSE Diff: 2 Page Ref: 185-186 Multiple Choice 39) What kind of tissue is the forerunner of long bones in the embryo? A) elastic connective tissue B) dense fibrous connective tissue C) fibrocartilage D) hyaline cartilage Answer: D Diff: 1 Page Ref: 183-184 40) What can a deficiency of growth hormone during bone formation cause? A) inadequate calcification of bone B) decreased osteoclast activity C) decreased proliferation of the epiphyseal plate cartilage D) increased osteoclast activity Answer: C Diff: 1 Page Ref: 186-187 41) Ossification of the ends of long bones ________. A) is a characteristic of intramembranous bone formation B) involves medullary cavity formation C) is produced by secondary ossification centers D) takes twice as long as diaphysis ossification Answer: C Diff: 1 Page Ref: 185 42) Which structure allows the diaphysis of the bone to increase in length until early childhood? A) lacunae B) Haversian system C) epiphyseal plate D) epiphyseal line Answer: C Diff: 2 Page Ref: 185-186 43) Which of the following is the single most important stimulus for epiphyseal plate activity during infancy and childhood? A) parathyroid hormone B) calcium C) growth hormone D) thyroid hormone Answer: C Diff: 2 Page Ref: 186 44) The resilience of bone is primarily due to which of the following? A) amount of mineral salts in the bone B) presence of osteoblasts in the bone C) sacrificial bonds in or between collagen molecules D) amount of mineral salt and protein in the bone Answer: C Diff: 2 Page Ref: 183 45) For intramembranous ossification to take place, which of the following is necessary? A) A bone collar forms around the cartilage model. B) An ossification center forms in the fibrous connective tissue. C) The cartilage matrix begins to deteriorate. D) A medullary cavity forms. Answer: B Diff: 1 Page Ref: 185; Fig. 6.9 Match 46. inferior nasal concha 11 47. infraorbital foramen 13 48. sphenoid bone 30 49. parietal bone 28 50. supraorbital foramen 34 51. maxilla 20 52. sphenoid bone 30 53. vomer 36 54. palatine process of maxilla 27 55. zygomatic process of temporal bone 38 Match (skeleton above) 56. Occipital Bone r 57. radius u 58. patella aa 59. illium h 60. scapula e Xtra Credit 1) Inability to absorb digested nutrients and secrete mucus might indicate a disorder in which tissue? A) simple squamous B) transitional C) simple columnar D) stratified squamous Answer: C Diff: 3 Page Ref: 120 2) Although the integument is a covering, it is by no means simple, and some of its functions include ________. A) the dermis providing the major mechanical barrier to chemicals, water, and other external substances B) resident macrophage-like cells whose function is to ingest antigenic invaders and present them to the immune system C) cooling the body by increasing the action of sebaceous glands during high-temperature conditions D) epidermal blood vessels serving as a blood reservoir Answer: B Diff: 3 Page Ref: 162-163 3) Normal bone formation and growth are dependent on the adequate intake of ________. A) calcium, phosphate, and vitamin D B) potassium, phosphate, and vitamin D C) sodium, calcium, and vitamin E D) vitamin D, phosphate, and chloride Answer: A Diff: 3 Page Ref: 187 4) In some cases the epiphyseal plate of the long bones of children closes too early. What might be the cause? A) overproduction of thyroid hormone B) elevated levels of sex hormones C) too much vitamin D in the diet D) osteoblast activity exceeds osteoclast activity Answer: B Diff: 2 Page Ref: 186 5. Match (must get all three correct to get 1 point) iliac fossa d ischial spine e pelvic brim f