J.C. REVY, ISM / SCIENCE PHOTO LIBRARY J.C. REVY, ISM / SCIENCE PHOTO LIBRARY
Artificial skin. The gloved hand of a researcher holds up a petri dish culture of artificial human skin. A square of cultured human dermis with a growth of epidermal cells (on the bottom & left) is seen. Skin is made of an inner layer, the dermis, made of connective tissue containing sweat glands, blood vessels, hair follicles and nerve fibres. This is enclosed and protected by the epidermis, made of two types of cells: protein producing keratinocytes and pigment producing melanocytes. Artificial skin is cultured in the laboratory by "seeding" a sample of human dermis with epithelial cells. Photographed at the Edouard Herriot Hospital, Lyon, France.
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