The outermost of three layers of the skin covering the human body. It is a protective layer and provides a barrier from pathogens. Its thickness varies depending where on the body it is situated.
Epidermis
![epidermis](https://nailknowledge.org/wp-content/uploads/2020/12/epidermis-1024x521.jpg)
The outermost of three layers of the skin covering the human body. It is a protective layer and provides a barrier from pathogens. Its thickness varies depending where on the body it is situated.