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3ed Lecture SkinHair and Nails

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health assessment
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  1   Skin, Hair& Nails ã Prepared by: Jeffrey Esteron  2   Skin: ã has 2 layers-outer(epidermis)& inner supportive dermis. Beneath a third the subcutaneous layer of adipose tissue.  3   Epidermis : ã a protective barrier, contain melanin, thin except on the surfaces exposed to friction, as palms &soles, it ’ s a vascular, nourished by blood vessels in the dermis below. Skin color is derived from three sources: ã brown from melanin.s ã yellow from carotene. ã red-purple from underlying vascular bed.  4   Dermis: ã it ’ s the inner supportive layer consist of collagen that allows skin to stretch. ã nerves, sensory receptors, blood vessels, lymphatic.
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