Human Anatomy and Physiology - Integumentary System
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Questions and Answers

What is the main function of the skin in regulating body temperature?

  • Producing red blood cells
  • Regulating sweat production and vasodilation/constriction of blood vessels (correct)
  • Secreting digestive enzymes
  • Aiding in breathing

    • Which layer of the skin is primarily responsible for producing sweat to cool the body?

  • Hair follicles
  • Subcutaneous layer
  • Epidermis (correct)
  • Dermis

    • What is the purpose of vasodilation in the regulation of body temperature?

  • Constricting blood vessels to conserve heat
  • Expanding blood vessels to release heat (correct)
  • Enhancing oxygen absorption
  • Stimulating the growth of new skin cells

    • Which of the following cell types plays a key role in protecting the skin from UV light damage?

    <p>Melanocytes</p> Signup and view all the answers

    How does sweat help regulate body temperature?

    <p>By cooling the body through evaporation</p> Signup and view all the answers

    In what way do Langerhans cells contribute to the skin's immune response?

    <p>Detecting and fighting against foreign invaders</p> Signup and view all the answers

    What is the function of the dermal papillae in the skin?

    <p>Supplying blood vessels for nourishing the epidermis</p> Signup and view all the answers

    How does the dermal papillary layer contribute to regulating body temperature?

    <p>By supplying blood vessels for heat dissipation</p> Signup and view all the answers

    Which component of the skin is responsible for flexibility and elasticity?

    <p>Collagen fibers in the reticular layer</p> Signup and view all the answers

    How do sweat glands aid in regulating body temperature?

    <p>By producing sweat to evaporate and cool the body</p> Signup and view all the answers

    What is the role of hair follicles in thermoregulation?

    <p>They provide insulation to help retain body heat</p> Signup and view all the answers

    In what way does the lower reticular layer contribute to maintaining body temperature?

    <p>By supporting glands that produce sweat for cooling</p> Signup and view all the answers

    Which layer of the epidermis is known for its water-repellent property?

    <p>Stratum Corneum</p> Signup and view all the answers

    Which cells in the epidermis are involved in protecting the skin from harmful UV rays?

    <p>Melanocytes</p> Signup and view all the answers

    What is the main function of the Stratum Spinosum in the epidermis?

    <p>Supporting against abrasion</p> Signup and view all the answers

    Which layer of the epidermis undergoes apoptosis (programmed cell death)?

    <p>Stratum Granulosum</p> Signup and view all the answers

    What is the primary function of Langerhans cells found in the epidermis?

    <p>Alerting the immune system to foreign invaders</p> Signup and view all the answers

    Which layer of the epidermis contains keratinocytes that continuously divide to form new cells?

    <p>Stratum Basale</p> Signup and view all the answers

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