Integumentary System

Question 1

What are stratum germinativum cells?

Answer 1

Epidermal cells that are actively mitotic and replace superficial cells that are continually rubbed off

Question 2

What causes the “tanning” effect that occurs when a person is exposed to the sun?

Answer 2

Melanin

Question 3

Fingernails and toenails are composed of what material?

Answer 3

Keratin

Question 4

What are the categories of epithelial tissue membranes?

Answer 4

Mucous, cutaneous, serous, and synovial

Question 5

How do physicians estimate the volume of fluid lost in a severely burned patient?

Answer 5

Using the “Rule of Nines”

Question 6

What do eccrine glands secrete?

Answer 6

99% water, sodium chloride, trace amounts of wastes, lactic acid, and vitamin C

Question 7

A pigmented spot that contains areas of different colors could indicate what?

Answer 7

Melanoma

Question 8

How does skin synthesize vitamin D?

Answer 8

It converts modified epidermal cholesterol to vitamin D

Question 9

Acne and seborrhea are caused by problems with what glands?

Answer 9

Sebaceous glands

Question 10

Describe the function of arrector pili muscles

Answer 10

In an attempt to warm the body up when cold, the arrector pili muscles contract to stand hairs upright

Question 11

Describe the hypodermis level of skin

Answer 11

Adipose tissue

Question 12

Describe the function of keratin in skin

Answer 12

Water resistance