Skin.ppt

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Skin.ppt

  1. 1. BODY SYSTEMS <ul><li>SKIN </li></ul><ul><li>or </li></ul><ul><li>INTEGUMENTARY </li></ul>
  2. 2. TWO LAYERS <ul><li>EPIDERMIS </li></ul><ul><li>Thin layer </li></ul><ul><li>Top layer </li></ul><ul><li>Melanin (located w/in) </li></ul><ul><li>Epithelial T. </li></ul><ul><li>DERMIS </li></ul><ul><li>Thick layer </li></ul><ul><li>Lower layer </li></ul><ul><li>Nerve, blood, hair & sweat </li></ul><ul><li>Connective T. </li></ul>
  3. 3. EPITHELIAL <ul><li>SIMPLE: </li></ul><ul><li>Layer- one cell thick, flat or cubed. </li></ul>
  4. 4. EPITHELIAL <ul><li>STRATIFIED : </li></ul><ul><li>Layer- two or more, mixed. </li></ul>
  5. 5. CONNECTIVE TISSUE <ul><li>Structure & Support. Blood , cartilage , and bone are different & not common. </li></ul>
  6. 6. <ul><li>EPIDERMIS > </li></ul><ul><li>DERMIS > </li></ul>
  7. 7. FUNCTIONS <ul><li>PROTECTION </li></ul><ul><li>MAKE VITAMIN D </li></ul><ul><li>SENSORY - TOUCH </li></ul><ul><li>MAINTAIN TEMPERATURE </li></ul><ul><li>EXPEL WASTE - SWEAT </li></ul>
  8. 9. How does the sun affect us?

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