The skin is the largest organ of the body, composed of three main layers: the epidermis, dermis, and hypodermis. The epidermis is the outermost layer, providing a protective barrier and containing cells that produce melanin, which gives skin its color. Beneath it, the dermis contains connective tissue, blood vessels, and nerve endings, playing a crucial role in sensation and temperature regulation. The deepest layer, the hypodermis, consists of fat and connective tissue, helping to insulate the body and absorb shock. This layer anchors the skin to underlying structures, such as muscles and bones, while also allowing for flexibility and movement. Together, these layers work to protect the body and maintain overall health.