Free 5-question sample test with instant feedback. See how ready you are.
Question 1
What is the scientific study of hair, its diseases, and care called?
Answer: Trichology. It is the branch of dermatology that deals specifically with the hair and scalp.
Question 2
What are the three main layers of the hair shaft from outermost to innermost?
Answer: Cuticle, cortex, and medulla. The cuticle is the outermost protective layer, the cortex provides strength and color, and the medulla is the innermost core.
Question 3
Which layer of the hair shaft contains the melanin pigment that gives hair its color?
Answer: The cortex. Melanin granules are distributed throughout the cortex and determine the hair's natural color.
Question 4
What is the term for the tube-like depression in the skin that encloses the hair root?
Answer: The hair follicle. It is the pocket in the skin from which the hair grows and receives nutrients.
Question 5
What structure at the base of the hair follicle supplies nutrients and produces new hair cells?
Answer: The dermal papilla. It contains blood vessels and nerves that nourish the hair follicle and stimulate hair growth.