← Trichology & Scalp – California Cosmetology State Board Exam

Free Trichology & Scalp – California Cosmetology State Board Exam Practice Test (2026)

110 questions · 120 min · 70% to pass

110 Questions · 120 Minutes · 70% to Pass

Question 1 of 5

Sample Questions

Question 1

What is the name of the outermost layer of the hair shaft composed of overlapping scale-like cells?

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

Question 2

Which part of the hair follicle supplies nutrients and oxygen to promote hair growth?

Answer: The dermal papilla, located at the base of the follicle, contains blood vessels that supply nutrients and oxygen essential for hair growth.

Question 3

What is the scientific term for the study of hair and its diseases?

Answer: Trichology is the scientific study of hair, its structure, functions, and diseases.

Question 4

Which layer of the hair shaft is responsible for giving hair its strength and elasticity?

Answer: The cortex is the middle layer of the hair shaft and is responsible for its strength, elasticity, and natural color.

Question 5

What is the function of the arrector pili muscle in relation to hair?

Answer: The arrector pili is a small involuntary muscle attached to the follicle that contracts in response to cold or fear, causing the hair to stand erect (goosebumps).