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Epidermis
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Outer layer of skin; waterproof layer that functions as protection and contains melanocytes
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Dermis
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Deep layer of skin that contains the sweat and oil glands; also contains tiny muscles attached to the hair follicles
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Subcutaneous layer
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Layer of loose connective tissue that connects the skin to the surface muscles; contains the blood vessels and fat
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Adipocytes
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Fat cells that make up most of the subcutaneous layer
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Arrector pili
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Tiny muscle that attaches to the hair follicle
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Hair
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Keratinized fibers that arise form hair follicles
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Hair follicle
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Area from which hair grows; located in the dermal layer of skin (dermis)
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Keratin
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Protein found in the hair and nails that promotes hardness
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Keratinocytes
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Cells that make up the epidermal layer of skin and assist in waterproofing the body
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Melanocytes
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Cells that give color to skin, eyes, and hair
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Nail
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Translucent plate made of keratin that covers and protects the ends of teh fingers and toes
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Sebaceous glands
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Glands that secrete oil (sebum) into the hair follicle and to the epidermal later of skin (epidermis)
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Sebum
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Oily secretion of the sebaceous gland
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Sudoriferous glands
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Glands that secrete sweat to the outside of the body; also assist in body temperature regulation
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Cry/o
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Cold
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