B. WAINWRIGHT,CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY B. WAINWRIGHT,CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY
Skin anatomy. Block cutaway illustration showing the anatomy of human skin, including hairs (black). The skin layers include an outer layer of dead skin cells (stratum corneum: light brown), below which is the epidermis (purple). Below the epidermis is the dermis, composed mainly of connective tissue over subcutaneous fat (yellow). The dermis contains sebaceous glands and hair follicles at the base of each hair, sweat glands (white, coiled), blood vessels (red and blue), and sensory nerves (yellow). Below is a layer of muscle (brown).
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