PATHOLOGY

Detailed explanation-1: -The outer layer of your skin contains cells that are dead. In fact, the outermost 25 to 30 cell layers of your skin consist of dead cells that do nothing beyond providing a physical barrier that keeps water in and chemicals out.

Detailed explanation-2: -The epidermis is made up of several layers which are formed through mitosis. However, as these move up in strata, the outermost layers get filled with keratin and eventually the outer layer is made up of dead cells.

Detailed explanation-3: -The topmost layer, the stratum corneum, consists of dead cells that shed periodically and is progressively replaced by cells formed from the basal layer.