GENERAL HISTOLOGY

Detailed explanation-1: -Epidermis. The epidermis is the most superficial layer of the skin and provides the first barrier of protection from the invasion of substances into the body. The epidermis is subdivided into five layers or strata: stratum basale.

Detailed explanation-2: -The stratum corneum is the outermost layer of the epidermis, and is made up of 10 to 30 thin layers of continually shedding, dead keratinocytes.

Detailed explanation-3: -The dermis is divided into two layers: the papillary dermis and the reticular dermis. The papillary dermis is the superficial layer, lying deep to the epidermis.