Chapter 5 Prac Test Ques Hybrid 2019 PDF

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Practice Test Questions for Chapter 5: The Integumentary System This document has 19 pages.

Figure 5.1 Using Figure 5.1, match the following: 1) Site of the dermal ridges that produce epidermal ridges on the epidermal surfaces of the fingers. Section 5.3 2) Responsible for shock absorption and located in the hypodermis. Section 5.4 3) Pulls the hair follicle into an upright position. Section 5.5 4) Sudoriferous (sweat) gland. Section 5.7 5) Dense irregular connective tissue. Section 5.3 6) Region that thickens markedly when one gains weight. Section 5.1 7) Where capillary loops are found. Section 5.3

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Use the figure shown above to answer the following questions: 8) Which structure produces sweat? A) 6 B) 7 C) 8 D) 9 E) 10 9) Which structure produces sebum? A) 6 B) 7 C) 8 D) 9 E) 10

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10) Which layer is the primary barrier against environmental hazards? A) 1 B) 2 C) 3 D) 4 E) 5 11) Which layer is the reticular dermis? A) 1 B) 2 C) 3 D) 4 E) 5 12) Which structure is responsible for contraction / emptying of sebaceous glands? A) 1 B) 2 C) 3 D) 4 E) 5 13) Which layer contains most of the accessory structures (glands, hair follicles, etc)? A) 1 B) 2 C) 3 D) 4 E) 5 14) Adipose tissue is a major component of this layer. A) 1. B) 2. C) 3. D) 4. E) 5. 15) Which layer is avascular? A) 1. B) 2. C) 3. D) 4. E) 5. 16) Which layer is the papillary dermis? A) 1 B) 2 C) 3 D) 4 E) 5 17) Which layer is the epidermis? A) 1 B) 2 C) 3 3 Copyright © 2019 Pearson Education, Inc.

D) 4 E) 5 18) Which layer has high levels of keratin? A) 1 B) 2 C) 3 D) 4 E) 5 19) Which layer has a major role in nutrient storage for the body? A) 1 B) 2 C) 3 D) 4 E) 5 20) Which layer has blood vessels that make the skin red during vigorous exercise? A) 1 D) 4 E) 5 21) Which layer insulates the body against loss of heat? A) 1 B) 2 C) 3 D) 4 E) 5 22) Which layer has dermal papillae? A) 1 B) 2 C) 3 D) 4 E) 5 23) Which layer has capillaries that nourish the epidermis? A) 1 B) 2 C) 3 D) 4 E) 5 24) The layer of the skin that contains bundles of collagen and elastic fibers responsible for the strength of the skin. A) 1 D) 4 E) 5

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Match the following: Section 5.2 A) Keratinocytes B) Keratin C) Dendritic cells D) Merkel cells E) Melanocyte 25) The most abundant cells of the epidermis. 26) Spider-shaped epithelial cells that synthesize the pigment melanin. 27) Nerve fiber plus a disc-like sensory nerve ending that functions as a sensory receptor for touch. 28) Skin macrophages that help activate the immune system. 29) The fibrous protein that helps give the epidermis its protective properties.

Match the following: Section 5.2 A) Stratum granulosum B) Stratum basale C) Stratum spinosum D) Stratum corneum 30) The layer of the epidermis where the cells are protective but not alive. 31) The layer of the epidermis that is several layers thick and contains pre-keratin. 32) The layer that contains the stem cells. 33) The layer of the epidermis that contains one to five layers of flattened cells and deteriorating organelles.

Match the following: Section 5.4 A) Jaundice B) Erythema C) Pallor D) Addison's disease E) Cyanosis 34) May indicate embarrassment, fever, hypertension, inflammation, anger, or allergy. 35) May indicate fear, anemia, or low blood pressure. 36) Usually indicates a liver disorder. 37) Appearance of a permanent tan; bronzing. 38) A bluish color in light-skinned individuals.

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Figure 5.2 Using Figure 5.2, match the following: 39) Hypodermis. 40) Epidermis. 41) Reticular layer of the dermis. 42) Papillary layer of the dermis. True/False Questions 43) There are no sensory receptors in the epidermis because most of this layer is dead cells. Section: 5.1 44) The dermis contains blood vessels and nerve fibers while the epidermis does not. Section: 5.1 45) Collagen is the most abundant protein in the outermost cell layer of the epidermis. Section: 5.2 46) The protein found in large amounts in the stratum corneum is keratin. Section: 5.2 47) Thick skin has a more extensive dermal layer than thin skin. Section: 5.2 48) Cells in the stratum corneum undergo mitosis to keep the layer thick and protective. Section: 5.2 6 Copyright © 2019 Pearson Education, Inc.

49) Regardless of race, all human beings have about the same number of melanocytes. Section: 5.2 50) Skin pigmentation is provided by Merkel cells. Section: 5.2 51) The papillary layer of the dermis consists of loose connective tissue that is built for warmth and insulation. Section: 5.3 52) The reticular region of the dermis is dense irregular connective tissue. Section: 5.3 53) Carotene and hemoglobin are two minor skin pigments that contribute to skin color. Section 5.4 54) The pinkish hue of individuals with fair skin is the result of hemoglobin (contained in red blood cells) within in the dermal capillaries. Section: 5.4 55) For a doctor, simply looking at a patient's skin can help towards making a diagnosis. Section: 5.4 56) The action of the arrector pili muscle is very similar in humans as it is in other mammals but its beneficial functions differ. Section: 5.5 57) When an individual is exposed to extremely cold air the dermal blood vessels will dilate so that more blood will be brought closer to the outside surface of the skin. Section: 5.7 58) The eccrine sweat glands are NOT the primary gland involved in thermoregulation. Section: 5.7 59) When a patient is said to have "third-degree burns," this indicates that the patient has burns that cover approximately one-third or more of the body. Section: 5.9 60) Joe just burned himself on a hot pot, and the burn is quite painful. Joe's burn would best be described as a third-degree burn. Section: 5.9 61) The rule of nines is used to distinguish the various types of skin cancers from one another. Section 5.9 62) Melanoma is the skin cancer most likely to metastasize. Section: 5.9 Multiple Choice Questions 63) The layer of loose connective tissue deep to the dermis is the A) epidermis. B) subcutaneous tissue. C) hyperdermis. D) deep fascia. E) reticular layer. Section: 5.1 7 Copyright © 2019 Pearson Education, Inc.

64) The components of the skin are the: A) epidermis and dermis. B) dermis and hypodermis. C) epidermis, dermis, and hypodermis. D) epidermis, dermis, hypodermis, and the subcutaneous layer. Section: 5.1 65) The reason the hypodermis acts as a shock absorber is that ________. A) it is located just below the epidermis and protects the dermis from shock B) it has no delicate nerve endings and can therefore absorb more shock C) the major part of its makeup is adipose, which serves as an effective shock absorber D) the cells that make up the hypodermis secrete a protective mucus Section: 5.1 66) Subcutaneous injections involve administration of medicine into the: A) epidermis. B) papillary layer of the dermis. C) reticular layer of the dermis. D) hypodermis. Section: 5.1 67) What is the specific tissue classification of the epidermis? A) keratinized stratified squamous epithelium B) simple squamous epithelium C) transitional epithelium D) areolar connective tissue E) nonkeratinized stratified squamous epithelium Section: 5.2 68) A needle would pierce the epidermal layers of the forearm in which order? A) basale, spinosum, granulosum, corneum B) basale, spinosum, granulosum, lucidum, corneum C) granulosum, basale, spinosum, corneum D) corneum, granulosum, spinosum, basale Section: 5.2 69) Which layer of epidermis is LEAST protected by melanin? A) stratum corneum B) stratum spinosum C) stratum basale D) stratum granulosum Section: 5.2 70) Melanin is produced by melanocytes within the stratum A) corneum. B) lucidum. C) granulosum. D) spinosum. E) basale. Section: 5.2

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71) Thin skin contains ________ epidermal layer(s) and thick skin contains ________ layers. A) 1; 2 B) 2; 3 C) 3; 4 D) 4; 5 E) 5; 6 72) Cells of the stratum spinosum have many interlocking desmosomes that will remain between the cells as they migrate to the stratum corneum. These cell junctions serve the body by ________. A) stopping water loss and preventing dehydration B) preventing ultraviolet light from penetrating the deeper layers of the epidermis C) allowing secretions like sweat or sebum to pass through D) preventing mechanical stress or trauma from damaging the epidermis Section: 5.2 73) Tommy fell and skinned his knee. The scrape did not bleed. He must have damaged the ______ only. A) epidermis. B) stratum corneum C) epidermis and dermis. C) epidermis, dermis, and hypodermis. D) subcutaneous layer. Section: 5.2 74) Which layer of the epidermis will be supplied with the highest levels of oxygen from the blood? A) stratum corneum B) stratum spinosum C) stratum basale D) stratum granulosum Section: 5.2 75) Thin skin lacks a stratum _______. A) corneum. B) granulosum. C) lucidum. D) spinosum. E) basale Section: 5.2 76) How do nutrients reach the epidermis of the skin? A) Blood vessels carry nutrients directly into the epidermis. B) Solute pumping transports nutrients into the epidermis. C) Nutrients migrate in vesicles from the hypodermis into the epidermis. D) Diffusion transports nutrients from blood vessels in the dermis into the epidermis. Section: 5.2 77) A splinter penetrated into the skin of the sole of the foot, reaching the papillary region of the dermis. Which layer of the epidermis would be the final layer injured? A) granulosum B) basale C) lucidum D) spinosum Section: 5.2 9 Copyright © 2019 Pearson Education, Inc.

78) Thick skin lacks: A) hair follicles. B) stratum lucidum. C) sweat glands. D) stratum granulosum. E) sebaceous glands. F) A and B G) B and F Sections 5.5 and 5.7 79) Which of the following is a skin sensory receptor for pain? A) Pacinian corpuscle B) tactile cells C) Meissner’s corpuscles D) free nerve ending Section: 5.2 and 5.8 80) _______ are the major cell type in the epidermis. A) Merkel cells B) Keratinocytes. C) Fibroblasts. D) Melanocytes. E) Dendritic cells. Section: 5.2 81) The epidermis is replaced every _______. A) 7-10 days B) 14-21 days C) 25-45 days D) two to three months E) four to six months Section: 5.2 82) Melanocytes and keratinocytes work together in protecting the skin from UV damage when keratinocytes ________. A) provide the melanocyte with nutrients necessary for melanin synthesis B) accumulate the melanin granules on their superficial portion, forming a UV-blocking pigment layer C) maintain the appropriate pH in order for the melanocyte to synthesize melanin granules D) maintain the appropriate temperature so the product of the melanocyte will not denature Section: 5.2 83) How does skin protect the body from ultraviolet (UV) radiation? A) The skin is protected by the synthesis of three pigments that contribute to the skin's color. B) Carotene, which accumulates in the stratum corneum and hypodermal adipose tissue, is synthesized in large amounts in the presence of sunlight. C) The skin is protected by increasing the number of epidermal dendritic cells, which help to activate the immune system. D) Prolonged exposure to the sun induces melanin dispersion, which in turn acts as a natural sunscreen. Section: 5.2

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84) Which of the following layers of the epidermis is responsible for cell division and replacement? A) stratum corneum B) stratum granulosum C) stratum basale D) stratum lucidum Section: 5.2 85) Skin without keratin would be more likely to: A) lose the sensation of touch. B) tear upon strong physical force C) burn upon exposure to the sun. D) be unable to thermoregulate. Section: 5.2 86) Which of the following cells and their function are correctly matched? A) keratinocytes – provide sense of touch and pressure B) melanocytes – protects cells in the stratum corneum from damaging effects of sun's rays C) dendritic cells – activate the immune system D) tactile cells – protection Section: 5.2 87) Which of the following protects us against excessive water loss through the skin? A) Glycolipids that are secreted by keratinocytes into extracellular spaces. B) The size and shape of the cells that make up the stratum spinosum, as well as the thick bundles of intermediate filaments. C) The dermis is the thickest portion of the skin and water cannot pass through it. D) Fat associated with skin prevents water loss. Section: 5.2 88) A dendritic or Langerhans cell is a specialized ________. A) squamous epithelial cell B) phagocytic cell C) nerve cell D) melanocyte Section: 5.2 89) ________ are cells in the epidermis that are part of the immune system. A) Dendritic cells B) Basal cells C) Merkel cells D) Squamous cells E) Melanocytes Section: 5.2 90) Dendritic cells are most abundant in the ________. A) stratum basale B) stratum spinosum C) stratum granulosum D) stratum lucidum E) stratum corneum Section: 5.2

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91) The sensory nerves in the epidermis are A) Pacinian corpuscles. B) tactile cells (Merkel cells). C) melanocytes. D) Meissner's corpuscles. E) keratinocytes. Section: 5.2 92) Blind students often use braille to read their school assignments. What cell in the stratum basale of the epidermis helps them discriminate between the textured dots? A) keratinocyte B) melanocyte C) Merkel cell D) dendritic (Langerhans) cell E) Pacinian corpuscles. Section: 5.2 93) All of the following contain blood vessels except the A) epidermis. B) papillary layer. C) reticular layer. D) subcutaneous layer. E) hypodermis. Section: 5.2 94) The dermis is a strong, flexible connective tissue layer. Which of the following cell types are likely to be found in the dermis? A) goblet cells, parietal cells, and chondrocytes B) monocytes, reticulocytes, and osteocytes C) fibroblasts, macrophages, and mast cells D) osteoblasts, osteoclasts, and epithelial cells Section: 5.3 95) The most superficial layer of the dermis is the: A) stratum basale. B) hypodermis. C) reticular layer. D) papillary layer. 96) _______ are the cells of the dermis that make collagen and elastin. A) Mast cells B) Fibroblasts C) Keratinocytes D) Macrophages E) Lamellar corpuscles Section 4.3 97) Where are blood vessels housed that nourish the epidermis? A) the reticular layer of the dermis B) stratum basale of the epidermis C) dermal papillae D) lamellated (Pacinian) corpuscles Section: 5.3 12 Copyright © 2019 Pearson Education, Inc.

98) What is the tissue classification of the papillary dermis? A) stratified squamous epithelium. B) areolar connective tissue C) dense regular connective tissue D) dense irregular connective tissue E) adipose tissue Section 5.3 99) We have unique patterns on our fingers, toes, palms, and soles created by: A) Merkel cells. B) dendritic (Langerhans) cells. C) cleavage lines. D) friction ridges. E) lamellated corpuscles Section 5.3 100) The layer of the skin that contains bundles of collagen and elastic fibers responsible for the strength of the skin is the ________ layer. A) papillary dermis B) reticular dermis C) epidermis D) subcutaneous E) hypodermal Section: 5.3 101) The dermis has two major layers. Which layer is thickest? A) the reticular layer B) the subcutaneous layer C) the hypodermal layer D) the papillary layer Section 5.3 102) The friction ridges in fingers, palms, and feet are different among various individuals. However, friction ridges are very similar between identical twins. This evidence suggests that friction ridges A) allow for better tactile sensation. B) are genetically determined. C) aid in gripping. D) change over time. Section: 5.3 103) What is the tissue classification of the reticular dermis? A) stratified squamous epithelium. B) areolar connective tissue C) dense regular connective tissue D) dense irregular connective tissue E) adipose tissue Section 5.3

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104) A surgeon opens a patient by cutting the skin parallel to the cleavage lines of the dermis (tension lines). This will result in ________. A) less chance for infection B) faster healing of the skin and less scaring C) greater chance of infection D) slowed healing and greater scaring Section: 5.3 105) Changes in skin color often indicate a homeostatic imbalance. Which of the following commonly occurs in liver disease such as hepatitis? A) The skin takes on a bronze or metallic appearance. B) Black-and-blue marks become evident for no apparent cause. C) The skin and sclera of the eyes appears to have an abnormal, yellowish tint. D) It is impossible to suggest Addison's disease from an inspection of a person's skin. Section: 5.4 106) Cyanosis signifies that a patient has A) had too much sun. B) been kept out of the sun. C) an allergic reaction. D) oxygen-starved skin. E) been exposed to cyanide. Section: 5.4 107) The three major pigments that determine skin color are A) carotene, hemoglobin, and melanin. B) carotene, eumelanin, and pheomelanin. C) melanin, hemoglobin, and chlorophyll. D) xanthophyll, hemoglobin, and melanin. E) melanin, carotene, and chromatin. Section: 5.4 108) Jaundice is indicated by a(n) ________ skin coloration. A) reddish B) yellowish C) orange D) bluish E) brown Section: 5.4 109) Exercise often makes the skin flush red, a condition known as: A) jaundice. B) erythema. C) pallor. D) cyanosis E) xanthochromic Section: 5.4

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110) An albino individual lacks the ability to produce A) melanin. B) keratin. C) carotene. D) perspiration. E) eleidin. Section: 5.4 111) Which of the following is NOT a skin appendage (epidermal derivative)? A) nails B) hair follicles C) sweat glands D) sebaceous glands E) arrector pili Section: 5.4 112) The arrector pili muscle's most useful function in humans is to ________. A) provide warmth by making the hair stand on end B) stimulate faster hair growth C) assist in the release sebum from nearby sebaceous glands D) prevent germs from entering the hair shaft Section: 5.5 113) When the arrector pili muscles contract strongly, A) "goose bumps" are formed. B) hairs are shed. C) sweat is released from sweat glands. D) shivering occurs. E) the skin changes color. Section: 5.5 114) The composition of sweat is ________. A) primarily uric acid B) 99% water, sodium chloride, trace amounts of wastes, and vitamin C C) fatty substances, proteins, antibodies, and trace amounts of minerals and vitamins D) metabolic wastes Section: 5.7 115) All of the following are true of sweat except that it A) is more than 99 percent water. B) contains electrolytes and waste products. C) helps cool the body when it evaporates. D) helps to prevent bacteria from colonizing the skin. E) produces the body odor characteristic of "sweating." Section: 5.7 116) Mammary glands are specialized: A) sweat glands. B) holocrine glands. C) sebaceous glands. D) ceruminous glands. Section: 5.7 15 Copyright © 2019 Pearson Education, Inc.

117) Apocrine glands begin to function at puberty in response to increased hormone levels. Where are these glands located in the human body? A) in all body regions and buried deep in the dermis B) beneath the flexure lines in the body C) in the axillary and anogenital areas D) in the palms of the hands and soles of the feet Section: 5.7 118) The sebaceous glands are simple alveolar glands that secrete a substance known as sebum. The secretion of sebum is stimulated ________. A) by high temperatures B) when the air temperature drops C) by hormones, especially androgens D) as a protective coating when one is swimming Section: 5.7 119) Which of the following is not a function of the sebum? A) It inhibits growth of bacteria. B) It lubricates the hair shaft. C) It conditions the surrounding skin. D) It helps the skin shed excess heat. E) It protects the hair shaft. Section: 5.7 120) Which of the following examples listed below illustrates homeostasis maintained by a negative feedback? A) An increase in sebum production in response to androgens (male sex hormones). B) Release of sweat by eccrine glands in re...