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The skin is the body's largest organ, covering the entire body. In addition to serving as a protective shield against heat, light, injury, and infection, the skin also:
|epidermis||The epidermis is the thin outer layer of the skin and consists of three parts:
The epidermis also contains melanocytes, which are cells that produce melanin (skin pigment).
The dermis is the middle layer of the skin. The dermis contains the following:
The dermis is held together by a protein called collagen, made by fibroblasts. This layer gives skin flexibility and strength. It also contains pain and touch receptors.
|subcutis||The subcutis is the deepest layer of skin. The subcutis, consisting of a network of collagen and fat cells, helps conserve the body's heat and protects the body from injury by acting as a shock absorber.|