Fig 9. Epidermis of the thick skin. The epidermis of the skin
is composed of stratified squamous epithelium (SSE) that is
keratinized. Especially on the palms of the hands and soles
of the feet, the epidermis has an outer keratinized layer,
stratum corneum (SC), that is substantially thicker than that
over the other parts of the body, referred to as thick skin.
The cells of the basal layer are usually cuboidal or columnar.
As the cells produced by mitosis are moved outward into
progressively more superficial layers they become more
differentiated and tend to become squamous (used in
classifying the epithelium). The stratum corneum (SC) is
composed of dead cells that have no nuclei.