The skin barrier is the outermost layer of the skin. Skin consists of three layers: the epidermis, the dermis, and the hypodermis, per Cleveland Clinic. The epidermis is the top layer of skin, and the ...
The integumentary system is the physical system that forms the barrier between the external environment and the internal systems of the body. In humans, this system consists of skin, hair, nails, and ...
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