Yfirhúðin
Yfirhúðin, also known as the epidermis, is the outermost layer of the skin in humans and many other animals. It serves as a protective barrier against the external environment, preventing water loss and the entry of pathogens. The epidermis is composed of several layers of cells, the most abundant of which are keratinocytes. These cells produce keratin, a tough protein that gives the epidermis its strength and resilience.
The epidermis is constantly shedding its outermost cells, a process called desquamation, and replacing them with
Different regions of the body have varying thicknesses of epidermis. For example, the epidermis on the soles