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the integumentary system - Coggle Diagram
the integumentary system
The Skin
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its composed of 4 types of tissues
- Epithelial : covers body surface
- Connective : provides support and protection
- Muscle : involved in body movement
- Nerve tissues : forms the body communication networks
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Hair and nails
- both hair and nails contain keratin and develop epithelial cells
- hair cells grow out of narrow cavities in the dermis called hair follicules
- hair follicules have sebaceous glands associated with them that lubricate the skin and hair
damage to the skin
- skin has remarkable abilities to repair itself
- without repair mechanisims, the body would be subject to invasion by microbes through breaks in the skin
classfication of burns :
- first degree : cells in the epidermis are injured and may die : redness and swelling , mild pain
- second degree : cells deeper in the epidermis die , cells in dermis are injured and may die : blisters , pain
- third degree : cells in epi/dermis die , nerve and muscle cells are injured : skin function lost , healthy skin needs to be transplanted , no pain cuz nerve cells damaged