ch 05 active lecture questions

Active Lecture Questions

C H A P T E R

Copyright © 2010 Pearson Education, Inc.

5

The Integumentary System


1. The skin and its accessory structures (e.g., fingernails) make up which of the following organ systems?

a. Epidermis system

b. Skin system

c. Integumentary system

d. Dermal system


2. The saying “beauty is only skin deep” is only pertinent to the __________ layer, which is outwardly visible.

a. epidermal

b. dermal

c. hypodermal

d. integumentary


3. The principal role of melanin is to __________.

a. give one that “healthy tan look”

b. keep the body cool

c. provide a waterproof layer

d. shield the nucleus from damage by ultraviolet radiation


4. The principle role of keratin is to __________.






5. The touch sensors of the epidermis are the _________.

a. keratinocytes

b. tactile cells

c. epidermal dendritic cells

d. melanocytes


6. 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?

a. Stratum corneum

b. Stratum lucidum

c. Stratum spinosum

d. Stratum basale


7. Fingerprints are copies of __________.

a. dermal papillae

b. epidermal papillae

c. dermal ridges

d. epidermal ridges


8. The principle tissue found in the dermal layer is ___________.

a. dense irregular connective tissue

b. stratified squamous epithelum

c. dense regular connective tissue

d. areolar connective tissue


9. Which of the following types of sweat gland secretion is thought to deter insects?

a. Eccrine

b. Apocrine

c. Ceruminous

d. Mammary


10. The most important role of the eccrine sweat gland is _________.

a. milk production

b. stress-induced sweating

c. body temperature regulation

d. earwax production


11. One critical function of sebum, in addition to roles in waterproofing and skin softening, is that it provides protection against ____________.

a. overexposure to the sun

b. overheating

c. harmful bacteria

d. abrasions or cuts to the skin


12. What is one major function of arrector pili muscle contraction that is particularly important in nonhuman mammals?

a. The arrector pili muscle contracts to allow for hair growth.

b. The arrector pili muscle contracts to shed dead hairs.

c. The arrector pili muscle contracts to alarm an approaching predator.

d. All of the above are true.


13. A female patient with excessive facial hair growth may have which of the following ailments?

a. Excessive estrogen secretion from the ovaries

b. Inadequate secretion of insulin from the pancreas

c. Inadequate secretion of thyroid hormone from the thyroid gland

d. Excessive secretion of androgens from an adrenal tumor


14. Loss of one’s skin, such as with severe burns, leads to an increased risk of __________.

a. bacterial infection

b. inadequate body temperature maintenance

c. dehydration

d. all of the above


15. The skin plays a role in the manufacture of vitamin ______.

a. A

b. B

c. C

d. D


16. Which of the following types of skin cancer is the most dangerous?

a. Basal cell

b. Squamous cell

c. Melanoma

d. All are equally dangerous.


1. The skin and its accessory structures (e.g., fingernails) make up which of the following organ systems?

a. Epidermis system

b. Skin system

c. Integumentary system

d. Dermal system


2. The saying “beauty is only skin deep” is only pertinent to the __________ layer, which is outwardly visible.

a. epidermal

b. dermal

c. hypodermal

d. integumentary


3. The principal role of melanin is to __________.



