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Skin - PowerPoint PPT Presentation


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Skin. What is it? What does it do?. What is it ?. The outer covering of body Made up of two very different basic tissue types the epidermis which is composed of epithelial tissues The dermis which is composed of connective tissue. Skin is really an organ.

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Skin

What is it?

What does it do?

what is it
What is it ?
  • The outer covering of body
  • Made up of two very different basic tissue types
    • the epidermis which is composed of epithelial tissues
    • The dermis which is composed of connective tissue
skin is really an organ
Skin is really an organ
  • It provides sensory information, protection from the environment, and the regulation of body temperature.
what does it do
What does it do?
  • Prevents loss of water
  • Barrier to germs
  • Regulation of body temperature
  • Sensory response
  • Excretion of waste
  • Makes Vitamin D
senses
Senses
  • Hot/Cold
  • Rough/Smooth
  • Pain
  • Wet/Dry
  • Pressure
  • Hard/soft
pigment
Pigment
  • All humans have the same protein for skin color, melanin. Some have more than others.
  • It determines how dark or light your skin is.
  • Melanin functions provides protection from UV rays.
  • Amount of melanin in skin increases with exposure to UV light.