Intermediate Hair Quiz

Q1. What is the function of the dermal papilla in the hair follicle?

• Anchors the hair to skin surface
• Lubricates the follicle
• Produces keratin directly
• Supplies nutrients and growth signals

Q2. Which layer of the hair shaft contains the pigment melanin?

• Root sheath
• Medulla
• Cuticle
• Cortex

Q3. What happens during the catagen phase of the hair cycle?

• Hair falls out actively
• Hair matrix re-pigments
• Hair shaft rapidly grows
• Growth stops and follicle shrinks

Q4. Which gland associated with hair secretes oil to lubricate the hair and skin?

• Mammary gland
• Sebaceous gland
• Sweat gland
• Lacrimal gland

Q5. What type of connective tissue surrounds the entire hair follicle?

• Basement membrane
• Adipose capsule
• Synovial sheath
• Connective tissue sheath

Q6. Which hormone is primarily linked to androgenic hair loss?

• Insulin
• Cortisol
• Estrogen
• Dihydrotestosterone (DHT)

Q7. How does the medulla differ from the cortex in hair structure?

• It is the outermost layer
• It contains hair papilla
• It is pigmented and thicker than the cortex
• It is central, may be absent, and less dense

Q8. What is the primary function of keratinocytes in the hair matrix?

• Anchor hair to the dermis
• Produce sebum
• Detect touch stimuli
• Form hair shaft and inner root sheath

Q9. Which vitamin deficiency is most commonly linked to brittle or thinning hair?

• Iron or vitamin D
• Vitamin K or calcium
• Vitamin E or zinc
• Folic acid or magnesium

Q10. What role does the outer root sheath play in hair regeneration?

• Forms the cuticle
• Houses stem cells for follicle renewal
• Produces melanin
• Secretes protective oil