Integumentary System Overview
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Questions and Answers

Which layer of the skin houses an extensive network of blood vessels carrying 8-10% of total blood flow in a resting adult?

  • Dermis (correct)
  • Subcutaneous layer
  • Hypodermis
  • Epidermis

    • What is the outermost layer of the epidermis made up of?

  • Living keratinocytes
  • Langerhans cells
  • Dead keratinocytes (correct)
  • Melanocytes

    • What process is responsible for producing new skin cells to replace old ones?

  • Melanogenesis
  • Keratinization
  • Meiosis
  • Mitosis (correct)

    • Which pigment is responsible for giving skin its color?

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

    What type of skin cell produces melanin?

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

    Which process is responsible for the production of vitamin D in the skin?

    <p>UV light absorption</p> Signup and view all the answers

    Which layer of the skin is responsible for producing protein fibers and creating a tightly interlocked layer of keratin surrounded by keratohyalin?

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

    What is the function of melanocytes in the skin?

    <p>To protect skin from sun damage</p> Signup and view all the answers

    In which layer of the epidermis would you find cells that respond to touch?

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

    What is the outer layer of the skin called?

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

    What causes dehydration through the skin resulting from damage to the stratum corneum?

    <p>Immersion in seawater</p> Signup and view all the answers

    Which layer of the epidermis is found only in thick skin and covers the stratum granulosum?

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

    What is the function of exocrine glands in the skin?

    <p>Produce sebum and sweat</p> Signup and view all the answers

    How long does it take for a cell to move from the stratum germinativum to the stratum corneum?

    <p>~15-30 days</p> Signup and view all the answers

    What protects the epidermis from sun damage caused by ultraviolet radiation?

    <p>$\alpha$-melanin pigments</p> Signup and view all the answers

    Which layer of the skin contains blood circulation components that contribute to skin color?

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

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