MICROANATOMY

Detailed explanation-1: –3-the stratum granulosum: here the keratinization process begins and the cells begin to die. This layer is called granulosum because the cells contain granules of the precursor of keratine.

Detailed explanation-2: -Function. Keratinocytes are highly specialized. They play an essential role in protection, as they form a tight barrier that prevents foreign substances from entering the body, while minimizing the loss of moisture, heat, and other constituents.

Detailed explanation-3: -Keratinization is part of the physical barrier formation (cornification), in which the keratinocytes produce more and more keratin and undergo terminal differentiation. The fully cornified keratinocytes that form the outermost layer are constantly shed off and replaced by new cells.