Question

What is an appendage of the skin and contains 90% hard keratin?

A) Sebaceous gland
B) Hair follicle
C) Sweat gland
D) Nerve ending

Answer 1

The appendage of the skin that contains 90% hard keratin is the hair follicle.

Step-by-step explanation:

The appendage of the skin that contains 90% hard keratin is the hair follicle.

Hair follicles are the structures where hairs originate and grow out of. They are associated with sebaceous glands, which secrete sebum that coats and waterproofs the hair. Each hair follicle also has a bed of capillaries, a nerve ending, and a tiny muscle called arrector pili.

Therefore, the correct answer is Option B) Hair follicle.