The epidermis is the thin outer layer of the skin. It consists of 2 primary types of cells:
Keratinocytes. Keratinocytes comprise about 90% of the epidermis and are responsible for its structure and barrier functions.
Melanocytes. Melanocytes are found at the base of the epidermis and make melanin. This gives the skin its color.
The dermis is the middle layer of the skin. The dermis contains:
The dermis is held together by a protein called collagen. This layer gives skin flexibility and strength. The dermis also contains pain and touch receptors.
Subcutaneous fat layer
The subcutaneous fat layer is the deepest layer of skin. It consists of a network of collagen and fat cells. It helps conserve the body's heat and protects the body from injury by acting as a shock absorber.