D. PHILLIPS / SCIENCE PHOTO LIBRARY D. PHILLIPS / SCIENCE PHOTO LIBRARY
False-colour scanning electron micrograph (SEM) of the surface epidermis of human skin. Dead cells are being shed as a natural replacement process. At lower centre, a sweat pore occurs on a raised area with circular arrangement of cells around it; this is the opening of a sweat gland. The skin covers the body surface and consists of an outer epidermis supported by an underlying dermis. Its structure varies according to location: thick skin covers the hands & feet and thin skin covers most of the remaining body surface. The ability of skin to differentiate gives rise to hair, nails, sebaceous glands and sweat glands. Magnification: x112 at 6x7cm, x 56 at 35mm size.
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