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Intergumentary system


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Intergumentary system

  2. 2. The skin Protects the body and guards it from harmful intruders like viruses and bacteria.<br />The skin is made up of three layers<br />LAYER ONE--Epidermis<br />The epidermis contains 5 layers-<br />1)stratum basale<br /> 2) stratum spinosum<br /> 3)stratum granulosum<br /> 4)stratum licidum<br /> 5)stratum corneum<br />The epidermis is the outer layer of skin<br />
  3. 3. LAYER TWO--DERMIS<br />The dermis contains nerve endings, blood vessels, oil glands, and sweat glands. <br />The dermis is home to the oil glands, too.<br />The dermis is composed<br />of three types of tissue<br />that are present<br />throughout - not in layers.<br /> The types of tissue are: <br />collagen <br />elastic tissue <br />reticular fibers<br />
  4. 4. LAYER THREE- SUBCUTANEOUS<br />* The subcutaneous is made mostly of fat and helps your body stay warm and absorb shock<br /> *The subcutaneous layer also helps hold your skin to all the tissues underneath it.<br />*The subcutaneous is where you'll find the start of hair<br />
  5. 5. A hair follicle is a part of the skin that grows hair by packing old cellstogether.<br />*The average person has 5 million hairs of which 100,000 - 150,000 are on the head<br />
  6. 6. SKIN<br />It is an organ for sensation:<br />*Touch <br />*Pain <br />*Pressure <br />Your skin can also help if you're feeling too hot or too cold.<br />
  7. 7. SKIN COLOR~PIGMENT<br />MELANIN<br />Skin color is due to melanin, a pigment produced in the epidermis to protect us from the sun's potentially cancer-causing ultraviolet rays<br />Dark-skinned people have more melanin than light- skinned people <br />Melanin is also found in hair<br />Freckles, which occur in people of all races, are small, concentrated areas of increased melanin production<br />Melanin also gives color to the iris of the eye<br />
  8. 8. LOVE THE SKIN YOUR IN!!<br />
  9. 9. REFERENCE<br /><br /><br /><br /><br />