The Anatomy and Function of the Skins Outermost Layer

The epidermis is the outermost layer of the skin.

The thickness of the epidermis varies depending on where on the body it is located.

Penetration of the epidermis can cause infections that the body can otherwise defend against.

A woman caressing the skin of her knee

PeopleImages / Getty Images

2018;26(2):56. doi:10.4103/tjps.TJPS_2_17

National Cancer Institute.Layers of the skin.

National Library of Medicine: MedlinePlus.Aging changes in skin.

American Cancer Society.What are basal and squamous cell skin cancers?.

2019;17(5):4133-4138. doi:10.3892/ol.2018.9736