Skincare Skin Anatomy and Physiology 2

Question 1

What is the primary function of sebaceous glands?

Accepted Answer

Secrete sebum to lubricate skin and hair

Answer

Regulate body temperature

Answer

Produce sweat

Answer

Produce collagen

Question 2

Which structural protein gives skin its elasticity and ability to return to its original shape?

Accepted Answer

Elastin

Answer

Keratin

Answer

Collagen

Answer

Hyaluronan

Question 3

The hypodermis (subcutaneous layer) is primarily composed of which tissue?

Accepted Answer

Adipose (fat) tissue

Answer

Muscle tissue

Answer

Nerve tissue

Answer

Epithelial tissue

Question 4

What is the approximate time for skin cell turnover (epidermal renewal) in a healthy adult?

Accepted Answer

28–30 days

Answer

7–10 days

Answer

14–21 days

Answer

60–90 days

Question 5

Which immune cells in the epidermis help defend against pathogens and play a role in allergic reactions?

Accepted Answer

Langerhans cells

Answer

Merkel cells

Answer

Melanocytes

Answer

Keratinocytes

Question 6

The acid mantle of the skin is formed by a combination of which secretions?

Accepted Answer

Sebum and sweat

Answer

Collagen and elastin

Answer

Melanin and keratin

Answer

Hyaluronic acid and ceramides