what is the epidermis made of quizlet
The epidermis is the outer layer of the three layers that make up the skin, the inner layers being the dermis and hypodermis. The epidermis layer provides a barrier to infection from environmental pathogens and regulates the amount of water released from the body into the atmosphere through transepidermal water loss. The outermost part of the epidermis is composed of stratified layers of flattened cells, that overlies a basal layer composed of columnar cells arranged perpendicularly. The rows of