What type of epithelium makes up the epidermis?

The epidermis is primarily composed of stratified squamous epithelium, which consists of multiple layers of flat cells. This structure is essential for the protective function of the skin. The outermost layers of the epidermis contain keratinized cells, which provide a barrier to environmental damage, pathogens, and moisture loss. The stratified arrangement allows for both durability and the ability to shed dead skin cells regularly while maintaining a viable layer underneath.

This type of epithelium is vital for the skin's overall function, including protection from abrasion and UV radiation. The multi-layered nature of stratified squamous epithelium also enables it to withstand physical stress, making it well-suited for the epidermis, the outermost layer of skin exposed to various external factors.