1. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Human Anatomy & Physiology SEVENTH EDITION Elaine N. Marieb Katja Hoehn Active Lecture Questions prepared by Cinnamon VanPutte, Southwestern Illinois College C H A P T E R 5 The Integumentary System

2. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings 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

3. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings 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

4. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings The principle role of melanin is to a. cause one to have that “healthy tan look.” b. keep the body cool. c. provide a waterproof layer. d. shield the nucleus from damage by ultraviolet radiation.

5. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings The principle role of keratin is to a. cause one to have that “healthy tan look.” b. keep the body cool. c. provide a waterproof layer. d. shield the nucleus from damage by ultraviolet radiation.

6. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings The touch sensors of the epidermis are the _________. a. keratinocytes b. Merkel cells c. Langerhans cells d. Melanocytes e. Meissner’s Corpuscle

7. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings 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

8. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Fingerprints are copies of __________. a. dermal papillae b. epidermal papillae c. dermal ridges d. epidermal ridges

9. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings The principle tissue found in the dermal layer is ___________. a. dense irregular connective tissue b. stratified squamous epithelum c. dense regular connective tissue d. elastic connective tissue

10. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings The most predominant type of sweat gland, the eccrine sweat gland, plays a role in _________. a. milk production b. stress-induced sweating c. body temperature regulation d. ear wax production

11. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings One critical function of this secretion, is waterproofing and skin softening. a. melanin b. sebum c. sweat d. milk

12. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings What is one major function of arrector pilli muscle contraction that is particularly important in non- human mammals? a. the arrector pilli muscle contracts to allow for hair growth b. the arrector pilli muscle contracts to shed dead hairs c. the arrector pilli muscle contracts to keep cold air off of the skin d. all of the above

13. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings 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

14. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings The skin plays a role in the manufacture of vitamin ______. a. A b. B c. C d. D

15. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings 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.