Epidermis, Outer layer of the skin, Blood vessels, Bring oxygen and white blood cells to the skin cells, Sweat glands, Release water to cool the body, also release waste, Melanin, Gives skin its color, protects us from UV radiation, Oil gland (sebaceous gland), Release sebum; used for protection and to prevent water loss, Sub-cutaneous layer, Lowest layer of the skin, under the dermis, Hair, Regulates body temperature and protects us (especially our ancestors), Muscle fiber, Attaches and pulls on the hair to stand it up, Fat cells, Make up the sub-cutaneous layer of our skin, regulate body temperature, Nerve fibers, Sense the environment, carry signals to the brain.

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