Epidermis

[Lorenzo]

Epidermis



The epidermis is the outer layer of the skin,[1] which together with the dermis forms the cutis. The epidermis is a stratified squamous epithelium,[2] composed of proliferating basal and differentiated suprabasal keratinocytes. The epidermis acts as the body's major barrier against an inhospitable environment.[3] In humans, it is thinnest on the eyelids at .10 mm (0.0039 in) and thickest on the palms and soles at 1.5 mm (0.059 in).[4] It is ectodermal in origin.

source: wikipedia

[Lorenzo]

histological sample:



note: the vertical line bar represents the epidermal lining.