Cosmetology Test Hair & Scalp Properties 5

Question 1

What is the visible part of the hair that extends above the scalp surface called?

Accepted Answer

Hair shaft

Answer

The hair shaft is the portion of the hair that is visible above the surface of the scalp.

Question 2

Traction alopecia is most commonly caused by:

Accepted Answer

Prolonged tension on the hair from tight hairstyles

Answer

Traction alopecia results from repeated or prolonged pulling on the hair, often from tight braids, ponytails, or extensions.

Question 3

The medulla is the innermost layer of the hair shaft and is:

Accepted Answer

Absent or fragmented in fine hair

Answer

The medulla is a soft, honeycomb-like core that may be absent or fragmented in fine or vellus hair.

Question 4

What is the primary function of the sebaceous glands in relation to hair?

Accepted Answer

Secreting sebum to lubricate and protect the hair and scalp

Answer

Sebaceous glands produce sebum, which lubricates the hair shaft and scalp, helping prevent dryness and providing some antimicrobial protection.

Question 5

Which hair growth phase is the longest, during which active growth occurs?

Accepted Answer

Anagen

Answer

The anagen phase is the active growth phase, lasting 2 to 7 years, during which the hair grows approximately 1/2 inch per month.

Cosmetology Test Practice Test