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What are the three layers of skin and what are their functions?
- 1) Epidermis-2 Layers, Basal Cell and Horny Cell.
- Basal produces new cells and holds keratin, melanin.
- Horny: Outter layer. Sheds.
- 2)Dermis: Connective, elastic, contains nerves/receptors, vascularized. Contains lymph tissue, ie hair, sweat, sebaceous glands.
- 3) Subcutaneous-Contains fat and gives skin added mobility.
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What is the difference between eccrine and apocrine glands?
Eccrine: Sweat gland which opens directly onto skin.
Apocrine: Milky, pheromone substance which is secreted onto hair folicles. Mixes with bacterial flora to produce the pharamone "musk."
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What is ecchymosis?
Bruising due to subcutaneous rupturing of blood vessels.
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What are ABCDE's of skin self exam?
- Asymetrical? Should not be.
- Borders? Clearly defined and round.
- Color? Should be brown. Black is not good.
- Diameter? Less than a cm.
- Elevated/enlarged? Has it gotten bigger or changed shape?
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