Cosmetology Hair and Scalp Properties

Front

Which of the following is a reason cosmetologists should understand hair and scalp properties?

Back

Identifying hair growth cycles and the differences between common and uncommon hair loss will help when recommending hair loss treatments to the client.

Front

All of the following are living portions of hair that are below the skin surface EXCEPT .

Back

the arrector pili muscle

Front

Each of the following is a layer of the hair shaft structure EXCEPT .

Back

the hair fiber

Front

Which portion of the hair root structure supplies nutrients so that the hair can grow?

Back

the dermal papilla

Front

Which sentence best describes the medulla?

Back

The medulla is the hair’s pith or core.

Front

Which layer of the hair shaft provides strength, elasticity, and color?

Back

the cortex

Front

What are the major chemical elements that make up human hair?

Back

carbon, oxygen, hydrogen, nitrogen, and sulfur

Front

Which of the following best describes how a disulfide bond in human hair is formed?

Back

Sulfur atoms on neighboring cysteine amino acids within polypeptide chains in the hair join.

Front

Which of the following is a situation in which a cosmetologist would allow the hair to cool before styling?

Back

when hydrogen side bonds have been broken by the heat from a curling iron

Front

What is the outermost layer of hair?

Back

hair cuticle