BSIP, GILLES / SCIENCE PHOTO LIBRARY BSIP, GILLES / SCIENCE PHOTO LIBRARY
Skin section. Artwork showing a section through human skin, revealing the different layers. The uppermost layer is the stratum corneum (cornified layer) of the epidermis. It comprises dead, keratinised flattened skin cells which are continuously sloughed off and replaced by new cells from below. The living layer of the epidermis (dark pink) is called the Malpighian layer. Beneath the epidermis is the dermis. This layer contains hair follicles and coiled tubular sweat glands. It also contains blood vessels and nerves. The skin is the first line of defence against infections and is important in regulating body temperature.
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