Card Set Information

2011-04-10 01:10:57
EOH353CH10 P2 Skin

EOH353CH10 Skin
Show Answers:

  1. What is the function of the skin?
    To keep bacteria and viruses out of the blood stream
  2. What is the Epidermis?
    The outer layers of the skin taken together.
  3. Where are Melanocytes located?
  4. True or false. Melanocytes are immobile.
    False. They are motile.
  5. Melanocytes create what pigment?
  6. Where do Melanocytes congregate?
    In hair follicles
  7. What happens to Melanocytes when you get older?
    Melanocytes' motility and productivity decrease
  8. What happens to the skin when it is exposed to UVB?
    • The Melanocytes start producing Melanin and start moving to the surface of the skin.
    • Tanning is an injury response.
  9. What does Melanin due?
    Absorbs UVB
  10. What is the Dermis?
    The inner layer of the skin taken together
  11. What are the Langerhans' Cells in the skin?
    Immune System cells
  12. True or false. Langerhan's Cells are Macrophages.
  13. What is the last line of defense before bacteria or viruses get into the blood stream?
    Langerhan's Cells / Macrophages
  14. What protects us from skin cancer?
    Langerhan's Cells
  15. What is Collagen?
    The elastic fibers located between the Epidermis and the Dermis that keep the skin tight
  16. As you get older, what happens to collagen?
    The Collagen Fibers break down and wrinkles form
  17. Which UV radiation type is aka "Tanning Ray"?
  18. Which UV radiation type is aka "Burning Ray" ?
  19. What is the relationship between UVA and Skin Cancer?
    UVA destroys Langerhans' Cells, the cells that protect us from Skin Cancer therefore making us more susceptible to Skin Cancer.
  20. What UV radiation type does cause Skin Cancer?
  21. What are 3 types of Skin Cancer?
    • Basal Cell Carcinoma
    • Squamous Cell Carcinoma
    • Malignant Melanoma
  22. What does Metastasize mean?
    Cells break off of the primary tumor and go and make other tumors through out the body
  23. What are the attributes of Basal Cell Carcinoma?
    • Cancer on the surface of the skin
    • Starts as a sore red spot and grow into a tumor
    • Does NOT Metastasize
    • Generall, not deadly
  24. How do you treat Basal Cell Carcinoma?
    • Freeze with liquid Nitrogen
    • Burn the tumor
    • Surgically remove the tumor
  25. Why is Basal Cell Carcinoma 100% treatably successful?
    Because it does not Metastasize
  26. What is the most common type of skin Cancer?
    Basal Cell Carcinoma
  27. What are the attributes of Squamous Cell Carcinoma?
    • Cancer of cells below the dermis
    • CAN Metastasize, but rare
    • Less easy to detect
  28. How is Squamous Cell Carcinoma treated?
    • Burning
    • Freezing
    • Surgically remove (most common)
  29. Basal Cell and Squamous Cell Carcinomas are occupational hazards to which two occupations usually?
    • Life Guards
    • Construction Workers
  30. Children who get Basal or Squamous Cell Carcinomas are how much more susceptible to getting either/both later?
    50% more susceptible
  31. Which of the three skin cancers is fatal if not treated early?
    Malignant Melanoma
  32. Malignant Melanoma is cancer of what type of cells in the skin?
  33. What are the attributes of Malignant Melanoma?
    • Melanocytes grow out of control
    • Melanocytes will metastasize easily because they are naturally motile
  34. What are the symptoms of Malginant Melanoma?
    • Mole or Freckle that changes color, shape, or bleeds.
    • Tumor / Cancer cells develop in mole/freckle's blood supply.
  35. Malignant Melanoma is easily detectable in which kind of skin color?
    Light-colored skin
  36. True or false. Malignant Melanoma is more common in people that are out doors normally.
    False. Malignant Melanoma is more common in people that are in doors and get extreme sun burns when out doors.
  37. SPF stands for what?
    Sun Protection Factor
  38. SPF refers to which kind of UV radiation?
  39. Define 1 hour equivalence
    The SPF # represents how many hours the Sun Screen will protect equal to the amount of skin that is exposed to the sun for 1 hour without protection
  40. Proper application requires that you apply the Sun Screen how long before sun exposure?
    30 minutes
  41. What is the problem with Water-Proof Sun Screen?
    The Nanotechnology that makes Sun Screen water proof may make Sun Screen chemicals more able to get into the blood stream