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5. The Integumentary System. The skin and its accessory structures (e.g., fingernails) make up which of the following organ systems?. Epidermis system Skin system Integumentary system Dermal system.
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5 The Integumentary System
The skin and its accessory structures (e.g., fingernails) make up which of the following organ systems? • Epidermis system • Skin system • Integumentary system • Dermal system
The saying “beauty is only skin deep” is only pertinent to the __________ layer, which is outwardly visible. • epidermal • dermal • hypodermal • integumentary
The principal role of melanin is to __________. • give one that “healthy tan look” • keep the body cool • provide a waterproof layer • shield the nucleus from damage by ultraviolet radiation
The principle role of keratin is to __________. • give one that “healthy tan look” • keep the body cool • provide a waterproof layer • shield the nucleus from damage by ultraviolet radiation
The touch sensors of the epidermis are the _________. • keratinocytes • tactile cells • epidermal dendritic cells • melanocytes
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 corneum • Stratum lucidum • Stratum spinosum • Stratum basale
Fingerprints are copies of __________. • dermal papillae • epidermal papillae • dermal ridges • epidermal ridges
The principle tissue found in the dermal layer is ___________. • dense irregular connective tissue • stratified squamous epithelum • dense regular connective tissue • areolar connective tissue
Which of the following types of sweat gland secretion is thought to deter insects? • Eccrine • Apocrine • Ceruminous • Mammary
The most important role of the eccrine sweat gland is _________. • milk production • stress-induced sweating • body temperature regulation • earwax production
One critical function of sebum, in addition to roles in waterproofing and skin softening, is that it provides protection against ____________. • overexposure to the sun • overheating • harmful bacteria • abrasions or cuts to the skin
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.
A female patient with excessive facial hair growth may have which of the following ailments? • Excessive estrogen secretion from the ovaries • Inadequate secretion of insulin from the pancreas • Inadequate secretion of thyroid hormone from the thyroid gland • Excessive secretion of androgens from an adrenal tumor
Loss of one’s skin, such as with severe burns, leads to an increased risk of __________. • bacterial infection • inadequate body temperature maintenance • dehydration • all of the above
The skin plays a role in the manufacture of vitamin ______. • A • B • C • D
Which of the following types of skin cancer is the most dangerous? • Basal cell • Squamous cell • Melanoma • All are equally dangerous.