BSIP, GILLES / SCIENCE PHOTO LIBRARY BSIP, GILLES / SCIENCE PHOTO LIBRARY
Skin section. Artwork of a section through human skin showing the layers in the epidermis. At top (yellow) is the cornified layer (stratum corneum). This comprises dead, keratinised, flattened cells which are continually shed and replaced from below. The living layer beneath this is called the Malpighian layer. This comprises the granular layer (orange) and the basal layer (purple), which is in contact with the dermis (bottom). A blood capillary is seen in the dermis (red). The green cells are melanocytes, which produce the pigment melanin. This gives skin its colour. Suntans are due to increased production of melanin. The skin protects the body from infections.
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