The skin is the largest organ of the body. The skin is made up of two main layers - an outer and inner layer. A layer of fat and connective tissues lies beneath the skin. The skin is connected to the layer of fat and connective tissues, which are connected to the tissues and organs.
The skin covers the body and protects the tissues from bacteria, from drying out, and from harmful light rays. The skin helps control body temperature, gets rid of water and salts, and makes and stores several important compounds, including vitamin D.