1. Which of the following is not a layer of the epidermis?
    Papillary layer
  2. Which of the following is incorrectly paired?
    • Langerhans cells: activate the immune system
    • Melanin: provides protection against UV radiation
    • Keratinocytes: produce a fibrous protein to protect the epidermis
    • NOT-Tactile cells: anchor the skin to the body
  3. Earwax is made by _________________
    ceruminous glands.
  4. In thick skin, you would expect the __________ to be more prominent than it is in thin skin.
    stratum lucidum
  5. Sweat is secreted by:
    sudoriferous glands
  6. What is the role of the hair matrix?
    The hair matrix produces hair.
  7. Sebum does not:
    • NOT-protect the skin from the damaging effects of UV radiation
    • slow water loss from the skin during low humidity conditions.
    • protect the skin from bacteria.
    • lubricate the skin.
  8. Which of the following represents a difference between eccrine sweat glands and apocrine sweat glands?
    The secretions of apocrine sweat glands contain more fat and protein than do the secretions of eccrine glands.
  9. The skin consists of three main regions. From deep to superficial they are the:
    hypodermis, dermis, and epidermis.
  10. Which of the following best explains the fact that eyebrows do not grow as long as the hair on the head?
    The follicles of the eyebrow are active for a few months, while the follicles of the scalp are active for years.
  11. Which of the following does not protect the skin from bacteria?

    NOT-The temperature of the skin

    The low pH of the skin

    The salinity of the skin

  12. The most common type of skin cancer is:
    basal cell carcinoma.
  13. A cancerous growth on the skin will likely exhibit
  14. What part of the dermis gives rise to friction ridges (fingerprints)?
    The papillary layer.
  15. What layer(s) of the skin is (are) damaged in a second-degree burn?
    The epidermis and the superficial regions of the dermis are damaged.
  16. Melanin helps to protect skin cell DNA from the damaging effects of ultraviolet (UV) radiation. T/F
  17. The epidermis uses a modified form of cholesterol to produce a vitamin D precursor. T/F
  18. Hair and nails are made primarily of calcium. T/F
  19. Our skin helps us to regulate our body temperature. T/F
  20. The biggest risk factor for the development of skin cancer is excessive exposure to ultraviolet light. T/F
Card Set