GENERAL HISTOLOGY

Detailed explanation-1: -The stratum corneum prevents the entry of most foreign substances as well as the loss of fluid from the body. This layer, just beneath the stratum corneum, contains living keratinocytes (squamous cells), which mature and form the stratum corneum.

Detailed explanation-2: -The stratum granulosum comprises keratinocytes that have matured to the point where they are beginning to produce the large amounts of keratin that will eventually fill the cells.

Detailed explanation-3: -The most superficial layer of the epidermis, the stratum corneum, plays a crucial role in retaining hydration; if its structure or composition is compromised, dry skin may result as a consequence of poor water retention.