Cosmetology Test Hair & Scalp Properties 3

Question 1

What is the outermost protective layer of the hair shaft called?

Accepted Answer

Cuticle

Answer

The cuticle is the outermost layer, made of overlapping scale-like cells that protect the inner layers of the hair shaft.

Question 2

A client's hair snaps when stretched slightly. This indicates low:

Accepted Answer

Elasticity

Answer

Low elasticity means hair cannot stretch and return to its original shape without breaking.

Question 3

What is the scientific name for the protein that makes up the majority of the hair strand?

Accepted Answer

Keratin

Answer

Hair is composed primarily of keratin, a fibrous structural protein.

Question 4

Which scalp condition is characterized by an overproduction of skin cells resulting in white or yellowish flakes?

Accepted Answer

Seborrheic dermatitis

Answer

Seborrheic dermatitis (dandruff) is caused by an overproduction of skin cells and can produce white or yellowish oily flakes.

Question 5

Hair texture refers to which characteristic of the individual hair strand?

Accepted Answer

The diameter or thickness of the hair strand

Answer

Hair texture describes the diameter of the individual hair strand, classified as fine, medium, or coarse.

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