Integumentary System: Hair Components
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Questions and Answers

What is the primary purpose of hair follicles in humans?

  • To determine hair color
  • To form the hair shaft
  • To produce sebum
  • To protect against cold and UV radiation (correct)

    • Which part of the hair strand is composed of living cells?

  • Hair shaft
  • Medulla
  • Hair bulb (correct)
  • Cuticle cells

    • Which component of a hair follicle surrounds the cuticle cells?

  • Cortex
  • Medulla
  • Hair bulb
  • Inner root sheath (correct)

    • What is the function of the cortex in a hair shaft?

    <p>To provide flexibility</p> Signup and view all the answers

    What gives rise to the characteristic profiles of hair seen across different ethnic groups and individuals?

    <p>Cross-sectional shape of hair strands</p> Signup and view all the answers

    Which component of the hair fiber is responsible for determining the physical and mechanical properties of hair?

    <p>Cortical layer</p> Signup and view all the answers

    Where do multipotent stem cells reside in relation to the hair follicle?

    <p>In a distinct bulge area</p> Signup and view all the answers

    What is the main task of the cuticle in relation to the hair shaft?

    <p>Attaching the growing hair shaft to the follicle</p> Signup and view all the answers

    Which structure is believed to be a primary orchestrator in the hair growth process?

    <p>Dermal papilla</p> Signup and view all the answers

    What is the primary function of autonomic sympathetic nerves in relation to hair follicles?

    <p>Providing control of functions</p> Signup and view all the answers

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