Effects of Sun Exposure on Skin Aging and Immune System
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Questions and Answers

What is a consequence of continued exposure to strong sunlight on the skin?

  • Enhanced dermal connective tissue
  • Increased melanocyte production
  • Improved function of sebaceous and sweat glands
  • Thinning of the epidermis and loss of epidermal ridges (correct)

    • What is the role of Langerhans cells (LC) in the skin immune system?

  • Antigen presentation (correct)
  • Collagen synthesis
  • Sebum secretion
  • Melanin production

    • What are the acute effects of UVC and UVB exposure on the eyes?

  • Enhanced color perception
  • Conjunctivitis and photokeratitis (correct)
  • Reduced tear production
  • Improved vision

    • How does UVR therapy contribute to improving acne?

    <p>Desquamation opens blocked pores and hair follicles</p> Signup and view all the answers

    What is a consequence of UVR exposure on the immune system?

    <p>Destruction of Langerhan's cells and stimulation of suppressor T cells</p> Signup and view all the answers

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