Cosmo Chp 8 Properties of the Hair and Scalp

The scientific study of the hair, its diseases, and its care is called:

The two main divisions of the hair are the hair root and the:

The three main structures associated with the hair root are the follicle, the bulb, and the:

The hair root is contained in a tube-like depression, or pocket, in the skin known as the:

The club-shaped structure that forms the lower part of the hair root is the:

The blood and nerve supply that provides nutrients needed for hair growth are contained in the:

The tiny involuntary muscle in the skin that contracts and causes "goose bumps" is the:

The oily substance called sebum is secreted by the:

The three layers of the hair shaft are the cuticle, cortex, and:

The layer of the hair shaft that protects it from penetration and damage is the: