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Layers of Skin – A Brief, Introductory View There are 3 main layers of skin: Epidermis (outermost layer); Dermis (middle layer); Hypodermis (fat layer)
Skin appendages types, function (hair, nails, sweat glands and sebaceous glands) | Science online
Skin appendages are epidermal and dermal-derived components of the skin that include hair, nails, sweat glands, and sebaceous glands. The skin, along with hair and nails, is the protective covering of the body, the skin prevents germs from entering the body and damaging the internal organs, the skin manufactures vitamin D when exposed to the sun's ultraviolet rays, and vitamin D is an essential vitamin for healthy skin.
