The epidermal layer that consists almost entirely of keratin is the . a. stratum corneum b. reticular layer c. stratum basale d. stratum granulosum

a. stratum corneum

Explanation: stratum corneum is the outer layer of the epidermis cell and consists of amount keratin.

Epidermis is the our layer of the skin and it is made of 5 layer stratum Basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum.

Corneum perform various function which include protection of underlying tissues against various infections and diseases, adaptation and physiological functions.

Stractum corneum thickness varies in the body this is due to the level of keratin in each body part. In the palm and toes where there is dense keratin the skin is though and strong.

Keratin keeps the body from dehydration by preventing water evaporation from the body.