Presentation on theme: "The Integumentary System"— Presentation transcript:
1 The Integumentary System 5The Integumentary System
2 The skin and its accessory structures (e. g The skin and its accessory structures (e.g., fingernails) make up which of the following organ systems?Epidermis systemSkin systemIntegumentary systemDermal systemAnswer: c. Integumentary system
3 The saying “beauty is only skin deep” is only pertinent to the __________ layer, which is outwardly visible.epidermaldermalhypodermalintegumentaryAnswer: a. epidermal
4 The principal role of melanin is to __________. give one that “healthy tan look”keep the body coolprovide a waterproof layershield the nucleus from damage by ultraviolet radiationAnswer: d. shield the nucleus from damage by ultraviolet radiation
5 The principle role of keratin is to __________. give one that “healthy tan look”keep the body coolprovide a waterproof layershield the nucleus from damage by ultraviolet radiationAnswer: c. provide a waterproof layer.
6 The touch sensors of the epidermis are the _________. keratinocytestactile cellsepidermal dendritic cellsmelanocytesAnswer: b. tactile cells
7 A patient taking a drug that inhibits cell division (such as certain chemotherapy drugs) would expect which layer of the epidermis to be most noticeably affected?Stratum corneumStratum lucidumStratum spinosumStratum basaleAnswer: d. Stratum basale
8 Fingerprints are copies of __________. dermal papillaeepidermal papillaedermal ridgesepidermal ridgesAnswer: d. epidermal ridges
9 The principle tissue found in the dermal layer is ___________. dense irregular connective tissuestratified squamous epithelumdense regular connective tissueareolar connective tissueAnswer: a. dense irregular connective tissue
10 Which of the following types of sweat gland secretion is thought to deter insects? EccrineApocrineCeruminousMammaryAnswer: c. Ceruminous
11 The most important role of the eccrine sweat gland is _________. milk productionstress-induced sweatingbody temperature regulationearwax productionAnswer: c. body temperature regulation
12 overexposure to the sun overheating harmful bacteria One critical function of sebum, in addition to roles in waterproofing and skin softening, is that it provides protection against ____________.overexposure to the sunoverheatingharmful bacteriaabrasions or cuts to the skinAnswer: c. harmful bacteria
13 The arrector pili muscle contracts to allow for hair growth. What is one major function of arrector pili muscle contraction that is particularly important in nonhuman mammals?The arrector pili muscle contracts to allow for hair growth.The arrector pili muscle contracts to shed dead hairs.The arrector pili muscle contracts to alarm an approaching predator.All of the above are true.Answer: c. The arrector pili muscle contracts to alarm an approaching predator.
14 Excessive estrogen secretion from the ovaries A female patient with excessive facial hair growth may have which of the following ailments?Excessive estrogen secretion from the ovariesInadequate secretion of insulin from the pancreasInadequate secretion of thyroid hormone from the thyroid glandExcessive secretion of androgens from an adrenal tumorAnswer: d. Excessive secretion of androgens from an adrenal tumor
15 inadequate body temperature maintenance Loss of one’s skin, such as with severe burns, leads to an increased risk of __________.bacterial infectioninadequate body temperature maintenancedehydrationall of the aboveAnswer: d. all of the above
16 The skin plays a role in the manufacture of vitamin ______. BCDAnswer: d. D
17 Which of the following types of skin cancer is the most dangerous? Basal cellSquamous cellMelanomaAll are equally dangerous.Answer: c. Melanoma
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