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Anatomy CVCC Test 1

Anatomy CVCC Chapter 6

The skin carries out the first step in the synthesis of vitamin D. True
Living keratinocytes exfoliate from the epidermis as tiny specks called dander. False
The deeper of the two layers of the skin is the hypodermis. False
The youngest keratinocytes are found in the stratum basale. True
Melanin, hemoglobin, and carotene give color to the skin. True
Albinism is the genetic lack of melanin that results in a milky white coloration of the skin True
Embarrassment can be perceived by an abnormal coloration of the skin called cyanosis. False
Freckles are elevated patches with an abnormal coloration of the skin False
Straight hair is round, wavy hair is oval, and curly hair is relatively flat. True
Hair and nails are composed of collagen. False
Merocrine sweat glands are associated with hair follicles in the pubic and anal regions, axilla, areola, and beard. False
Pattern baldness is relatively rare in women because women have lower testosterone levels than men. True
The acidity of sweat contributes to the acid mantle that inhibits bacterial growth in the skin. True
Debridement is not necessary to infection control False
The three forms of skin cancer are defined by the types of cells in which they originate. True
16. The skin does not include A. the epidermis. B. the papillary layer. C. the hypodermis. D. the stratum basale. E. the dermis. C. The hypodermis
17. These are all types of cells found in the epidermis except A. melanocytes. B. fibroblasts. C. stem cells. D. keratinocytes. E. tactile (Merkel) cells. B. fibroblast
18. Skin covering the __________ has sweat glands but no hair follicles or sebaceous (oil) glands. A. forearm B. buttocks C. abdomen D. fingertips E. back D. Fingertips
19. Most of the skin is ___________ mm thick. A. 0.01 to 0.02 B. 0.1 to 0.2 C. 1 to 2 D. 10 to 20 E. 100 to 200 B. .1 to .2
26. This layer of the epidermis consists of up to 30 layers of dead cells. A. stratum basale B. stratum spinosum C. stratum granulosum D. stratum lucidum E. stratum corneum E. stratum corneum
27. Which of the following are associated with the sense of touch? A. fibroblasts B. melanocytes C. keratinocytes D. dendritic (Langerhans) cells E. tactile (Merkel) cells E. Merkel cells
28. The fastest rate of mitosis happens in the A. stratum basale. B. stratum spinosum. C. stratum granulosum. D. stratum lucidum. E. stratum corneum. A. stratum basale.
29. These cells stand guard against toxins, microbes and other pathogens. A. keratinocytes B. melanocytes C. adipocytes D. dendritic (Langerhans) cells E. tactile (Merkel) cells D. dendritic (Langerhans) cells
30. Fingerprints left on things we touch are associated with A. dermal papillae. B. epidermal ridges. C. stratum basale. D. subcutaneous tissue. E. subcutaneous fat. A. dermal papillae
31. Calluses or corns are the result of accelerated multiplication of A. melanocytes. B. keratinocytes. C. fibroblasts. D. tactile cells. E. red blood cells. B. keratinocytes
32. The ___ is absent from most epidermis. A. Stratum basale B. Stratum spinosum C. Stratum granulosum D. Stratum lucidum E. Stratum corneum D. Stratum luidum
33. Leather is mostly made of the __________ layer of the dermis, which is very tough due to the high concentration of ____________ fibers. A. areolar; collagen B. areolar; keratin C. reticular; collagen D. reticular; keratin E. papillary; keratin C. reticular; collagen
34. Hypodermis is usually has an abundance of in this tissue. A. epithelial tissue B. muscular tissue C. nervous tissue D. adipose tissue E. keratinized tissue D. adipose tissue
35. The skin discoloration most likely to suggest physical abuse is A. pallor. B. albinism. C. erythema. D. hematoma. E. jaundice. D. hematoma
36. The reddish color of the skin of the lips is primarily due to this pigment. A. hemoglobin B. myoglobin C. melanin D. carotene E. keratin A. hemoglobin
37. This skin color is most likely to result from anemia. A. pallor B. erythema C. hematoma D. albinism E. jaundice A. pallor
38. Bilirubin causes a skin discoloration called A. erythema. B. jaundice. C. pallor. D. bronzing. E. cyanosis. B. jaundice
39. Ethnic differences in skin color are primarily caused by differences in A. UV radiation exposure. B. quantity of hemoglobin carried in the blood. C. quantity of melanin produced. D. number of melanocytes. E. number of keratinocytes. c. quantity of melanin produced.
40. A ___ is an elevated patch of melanized skin. A. hemangioma B. mole C. freckle D. flexion line E. friction ridge B. Mole
41. A pilus is A. a hair. B. a hair follicle. C. a tiny muscle that moves a hair. D. a sensory nerve fiber around the base of a hair. E. a gland associated with a hair follicle. A. a hair
42. The hair present only prenatally is called ___________, most of which is replaced by ____________ by the time of birth. A. pilus; terminal hair B. lanugo; terminal hair C. vellus; terminal hair D. vellus; lanugo E. lanugo; vellus E. lanugo; vellus
43. The _________ provides the hair with its sole source of nutrition. A. bulb B. root C. shaft D. dermal papilla E. medulla D. dermal papilla
45. The contraction of the piloerector muscles (pilomotor muscle or arrector pili) in humans causes D. hair to stand up for no apparent reason.
46. A hair cycle consists of three developmental stages in the following order: A. anagen, telogen, and catagen. B. anagen, catagen, and telogen. C. catagen, anagen, and telogen. D. catagen, telogen, and anagen. E. telogen, anagen, and catagen. b. ACT
47. Each hair grows in an oblique epithelial tube called a(an) A. hair follicle. B. vellus. C. pilus. D. bulb. E. dermal papilla. A. hair follicle
48. Excessive hairiness is called A. telogenism. B. anagenism. C. catagenism. D. alopecia. E. hirsutism. E. hirsutism
49. The narrow zone of dead skin overhanging the proximal end of a nail is called A. eponychium (cuticle). B. lunule. C. nail plate. D. nail body. E. nail root. A. eponychium (cuticle)
51. Variations in hair color arise from the relative amounts of A. collagen and elastic filaments. B. keratin and melanin. C. carotene and hemoglobin. D. carotene and collagen. E. eumelanin and pheomelanin. E. eumelanin and pheomelanin
52. Mitosis in the __________ accounts for growth of the nail. A. nail plate B. nail fold C. eponychium D. hyponychium E. nail matrix E. nail matrix
53. The oil of your scalp is secreted by __________ glands associated with the hair follicles. A. merocrine sweat B. apocrine sweat C. sebaceous D. ceruminous E. mammary C. sebaceous
54. Secretions from __________ glands contribute the acid mantle that inhibits bacterial growth on the skin. A. mammary B. ceruminous C. sebaceous D. apocrine sweat E. merocrine sweat E. merocrine sweat
55. ____________ is/are formed partly from the secretions of glands in the external ear canal. A. Sebum. B. Cerumen. C. Sweat. D. Scents. E. Mucus. B. Cerumen
57. The cutaneous glands concerned with cooling the body are A. ceruminous glands. B. sebaceous glands. C. merocrine glands. D. apocrine glands. E. exothermic glands. c. merocrine glands
58. The ___ are a source of sex pheromones. A. ceruminous glands B. merocrine glands C. mammary glands D. sebaceous glands E. apocrine glands E. aprocrine glands
59. Mammary glands are modified ___________ glands that develop within the female breast, whereas ____________ are present in both sexes. A. merocrine; scent glands B. apocrine; breasts C. apocrine; scent glands D. sebaceous; sudoriferous glands B. apocrine; breasts
60. Which two strata of the epidermis are most susceptible to cancer? A. corneum and lucidum B. basale and corneum C. spinosum and basale D. granulosum and spinosum E. lucidum and granulosum C. spinosum and basale
61. The "ABCD rule" for recognizing early signs of malignant melanoma refers to the following characteristics of the lesion: A. asymmetry, border irregularity, color, and diameter
62. The least common but most deadly type of skin cancer is A. basal cell carcinoma. B. squamous cell carcinoma. C. malignant melanoma. D. skin lymphoma. E. skin sarcoma. c. malignant melanoma
63. Basal cell carcinoma initially affects cells of the stratum __________, whereas malignant melanoma arises from ___________. A. spinosum; keratinocytes B. spinosum; melanocytes C. basale; fibroblasts D. basale; melanocytes E. basale; keratinocyte D. basale; melanocytes
64. _____________ burns involve the epidermis, all of the dermis, and often some deeper tissue. A. First-degree B. Second-degree C. Third-degree D. Partial-thickness E. Malignant C. third degree
65. The most immediate threat to the life of a patient with severe burns is A. fluid loss. B. eschar. C. heat loss. D. pain. E. infection. A. fluid loss
Created by: eosheehan

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