What is the stratum corneum?

Stratum corneum:

1. The final layer, the stratum corneum, is made up of corneocytes, or dead epithelial cells, which are also known as corneocytes.
2. These cells are recognized to carry out physiological protective and adaptive tasks, such as controlling water flux and hydration, mechanical shear, etc.
3. It is composed of 15 to 20 layers of flattened cells without nuclei or other cell organelles.
4. It serves as a barrier, defending underlying tissues from bacterial infection, dryness, and mechanical stress.
5. The stratum corneum, which is the frog's outermost layer of skin, is composed of thinly layered fertilized cells.