A&P chapter 6-

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  1. Integment
    made up of the skin itself, and the accessory structures like lair, fingernails, sensory receptors and glands.
  2. Skin 3 layers
    epidermis, dermis, subcutaneous
  3. epidermis
    • outer layer composed of stratified squamous epithelium
    • -lacks blood vessels
  4. derims
    • thicker than epidermis 
    • -protects us from and controls temperature
    • -provides blood supply to skin
    • -made up of loose connective tissue, elastic fibers, epithelium, muscle, nerves and blood
    • -contains neurons (sensory receptors).
  5. subcutaneous
    • loose connective tissue in teh form of adipose tissue.
    • - no sharp bundary between the dermis and subcutaneous 
    • -insulates from too much heat or too little, provudes blood supply to the skin, nerve sensory receptors
  6. nails
    an extension of the stratified squamous epithelium
  7. hair follicles
    • an extension of stratified squamous epithelium
    • -all over body besides hand and feet palms
    • -erector pilli muscle
  8. sebaceous glands
    • usually found in close proximity to hair folicles
    • -releases sebum which protects, moistens and keep skin soft.
  9. sweat glands
    • -secrete sweat which is mostly water
    • -cools the skin
    • -sweat has some waste products, salt, etc
  10. skin cancer
    cutaneous carcinomas and cutaneous melanomas
  11. cutaneous carcinomas
    • most common, occur within people with prolonged exposure to lots of sunlight.
    • -long term exposure- cells divide to replace sun burn damage, don't undergo apoptosis
  12. cutaneous melanomas
    normally people that have strong acute exposures to the sun are at risk, melanomas are typically more dangerous
Card Set:
A&P chapter 6-
2014-01-15 18:22:00
fortis herzog anantomy

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