Skin Histology and Physiology
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Questions and Answers

What is the main component of the integument?

  • Dermis
  • Blood vessels
  • Subcutaneous tissue
  • Epidermis (correct)

    • Which of the following is NOT a function of the skin?

  • Excretion of glucose (correct)
  • Synthesis of vitamin D
  • Protection against injury
  • Regulation of body temperature

    • Which of the following is NOT considered a skin appendage?

  • Sebaceous glands
  • Sweat glands
  • Blood vessels (correct)
  • Hair follicles

    • What is the approximate weight of the integument in a person weighing 70 kg?

    <p>4.0 kg</p> Signup and view all the answers

    Which structure covers the external surface of the tympanic membrane?

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

    What determines the color of the skin?

    <p>Vascularization and pigmentation</p> Signup and view all the answers

    Which layer of the skin contains cells that are mitotically active and cuboidal to low columnar in shape?

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

    In which type of skin is the stratum lucidum present?

    <p>Thick skin</p> Signup and view all the answers

    Which type of skin lacks hair follicles, arrector pili muscles, and sebaceous glands?

    <p>Thick skin</p> Signup and view all the answers

    What is the main component of the epidermis, composing of keratinocytes, melanocytes, Langerhans cells, and Merkel cells?

    <p>Stratified squamous epithelium</p> Signup and view all the answers

    Which layer of the epidermis consists of several layers of flat cornified, keratinized dead cells with a thickened cell membrane?

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

    What is the thickness range of the epidermis in thin skin?

    <p>$75-150$ µm</p> Signup and view all the answers

    Which cell type in the epidermis is responsible for detecting light touch and superficial pressure?

    <p>Merkel cells</p> Signup and view all the answers

    What is the main function of the stratum granulosum in the epidermis?

    <p>Keratinization and waterproofing</p> Signup and view all the answers

    Which layer of the epidermis is most superficial but still contains cells with nuclei?

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

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