Anatomy & Physiology — Cosmetology Practice Test
88 questions in this topic · 30 drawn at random this round
How are porosity and elasticity defined?
Session Progress
This Cosmetology Anatomy & Physiology practice set has 88 practice questions based on the official exam materials, each with an instant explanation. You need 75% on the real Cosmetology knowledge test to pass.
Sample questions
Three questions from the Anatomy & Physiology bank with the correct answer and an explanation. The practice quiz above draws 30 questions at random from the same bank.
Hair is an appendage of the skin composed mainly of which protein?
- Keratin — Correct answer
- Collagen
- Elastin
- Melanin
Explanation: Hair is a skin appendage made primarily of keratin, a tough fibrous protein. Collagen and elastin are connective-tissue proteins, and melanin is a pigment, not a structural protein.
Handbook: Anatomy & Physiology — Hair Composition
Which structures make up the hair root, located below the surface of the skin?
- Follicle, hair bulb, dermal papilla, and matrix — Correct answer
- Cuticle, cortex, and medulla
- Hair stream, whorl, and cowlick
- Anagen, catagen, and telogen
Explanation: The hair root lies below the skin and includes the follicle, hair bulb, dermal papilla, and matrix. The cuticle/cortex/medulla are layers of the hair shaft, and the other choices describe growth patterns and cycle phases.
Handbook: Anatomy & Physiology — Hair Root
What is the main function of the dermal papilla?
- It supplies blood and nourishment to the hair bulb — Correct answer
- It produces sebum to lubricate the hair
- It forms the protective scales of the cuticle
- It contracts to cause goosebumps
Explanation: The dermal papilla contains blood vessels that nourish the hair bulb and matrix; damage to the papilla can stop hair growth. Sebum is made by oil glands, scales are the cuticle, and the arrector pili muscle causes goosebumps.
Handbook: Anatomy & Physiology — Dermal Papilla