What are the main layers of my skin and what functions do they perform?

What are the main layers of my skin and what functions do they perform?

There are three layers of the skin. The first and outermost layer is the epidermis. The middle layer is the dermis, and the layer underneath the dermis is the subcutaneous layer or the fat layer. The epidermis has many functions, but it's major function is to keep the outside world out and the inside world in. The dermis is where the blood vessels, the immune system, where the structure and the pliability of the skin lies. In addition, what are known as the adnexal structures live there, which are the hair follicles, the sweat glands, and also some of the nerves live as well in the dermis. Then there's the fat layer, which primarily, again gives pliability and heat retention as well.