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Hair & Scalp Properties Flashcards

7 cards from real Cosmetology Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Hair & Scalp Properties flashcards as text

  1. What is the average growth rate of human hair per month?

    Answer: 1/2 inch

    Human hair grows approximately 1/2 inch (about 1.25 cm) per month on average.

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

    Answer: Cortex

    The cortex is the middle layer of the hair shaft and provides elasticity, strength, and contains melanin pigment.

  3. What term describes the ability of hair to absorb moisture from the atmosphere?

    Answer: Hygroscopicity

    Hygroscopicity is the hair's ability to absorb moisture from the surrounding atmosphere.

  4. The arrector pili muscle is responsible for which action?

    Answer: Causing goosebumps by raising hair

    The arrector pili is a small muscle attached to the hair follicle that contracts to cause the hair to stand upright, producing goosebumps.

  5. Which type of melanin gives hair red and blonde tones?

    Answer: Pheomelanin

    Pheomelanin is the pigment responsible for red and blonde hair colors.

  6. What is the term for the natural oil produced by the sebaceous glands that lubricates the hair and scalp?

    Answer: Sebum

    Sebum is the oily secretion of the sebaceous glands that coats the hair shaft and scalp to provide lubrication.

  7. During which phase of the hair growth cycle does the hair follicle shrink and hair stops growing?

    Answer: Catagen

    During the catagen phase (transitional phase), the follicle shrinks and active hair growth ceases.