BODY SYSTEMS

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BODY SYSTEMS

• SKIN
• or
• INTEGUMENTARY

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• EPIDERMIS gt
• DERMIS gt

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TWO LAYERS

• DERMIS
• Thick layer
• Lower layer
• Nerve, blood, hair sweat
• Connective T.

• EPIDERMIS
• Thin layer
• Top layer
• Melanin (located w/in)
• Epithelial T.

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MELANIN

• Pigment that gives the skin (and hair) its
  color.
• In the epithelial layer.

http//i30.photobucket.com/albums/c317/Yoshi1684/0
4-skin-color-map_cl.png
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EPITHELIAL

• SIMPLE
• Layer- one cell thick, flat or cubed.

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EPITHELIAL

• STRATIFIED
• Layer- two or more, mixed.

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CONNECTIVE TISSUE

• Structure Support. Common types cartilage,
  ligaments, tendons fat.

• Blood, cartilage, and bone are different not
  common.

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FUNCTIONS

• PROTECTION
• MAKE VITAMIN D
• SENSORY - TOUCH
• MAINTAIN TEMPERATURE
• EXPEL WASTE - SWEAT

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How does the sun affect us?