PATHOLOGY

Detailed explanation-1: -The epidermis functions as a physical barrier to the external environment and works to prevent loss of water from the skin.

Detailed explanation-2: -The epidermal cells are:-1-the keratinocytes: compose most of the epidermis. They produce a protein: the keratin that helps waterproof the skin and that protects the skin and the underlying tissues from heat, microbes, abrasion and chemicals.