STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Skin. Coloured scanning electron micrograph (SEM) of skin and a hair from the external genitals. The surface consists of squamous epithelium cells. Unlike other skin surface layers, these cells are living and not keratinised (thickened). Magnification: x50 when printed at 10 centimetres wide.
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