1. the Various Shades of Human Skin Color Are Determined by the Amount Of

Quiz 2

Multiple Choice

1. The various shades of human skin color are determined by the amount of

a. keratin in the skin

b. melanin in the skin

c. papillae

d. merkel cells

2. Nails are formed by the _____ layer.

a. epidermal

b. dermal

c. hypodermal

d. subcutaneous

3. Skin is protected by a thick, oily substance called:

a. sebum

b. keratin

c. melanin

d. mucous

4. The number one way to prevent the spread of disease is

a. bathing daily

b. keeping the fingernails short

c. wearing gloves

d. handwashing

5. The amount of water lost through the skin is almost _____ milliliters a day.

a. 500

b. 1,000

c. 200

d. 50

True/False

6. The skin is designed to screen out any harmful ultraviolet radiation contained in sunlight.

7. The dermis is the outermost layer of the skin.

8. Perspiration is 50% water, 25% salt, and 25% organic materials.

9. An intact skin surface is the best way the body can defend itself against pathogens.

10. The loss of subcutaneous fat results in lines, wrinkles, and sagging of the skin.