The Layer of Hard Keratin That Acts as the Surface

Question

The layer of hard keratin that acts as the surface of the hair is termed the
A) medulla.
B) cuticle.
C) hair bulb.
D) root.
E) shaft.

Accepted Answer

The cuticle is the outermost layer of the hair and is composed of hard keratin. It acts as a protective layer and provides strength to the hair. The medulla is the innermost layer of the hair, the hair bulb is the base of the hair follicle, the root is the part of the hair that is embedded in the skin, and the shaft is the visible part of the hair above the skin surface.