Cell division by cells of the stratum replaces the shedding skin cells of the stratum corneum.

The statement you provided is about the process of skin cell renewal in the human body. Here's a step-by-step explanation:

1. The skin is composed of several layers, the outermost of which is the stratum corneum. This layer is made up of dead skin cells that are constantly being shed and replaced.

2. The replacement cells come from the lower layers of the skin, specifically the stratum basale (also known as the basal layer or stratum germinativum).

3. The cells in the stratum basale divide and multiply through a process called mitosis. As new cells are produced, they push the older ones up towards the surface of the skin.

4. As the cells move up through the layers of the skin, they undergo changes. They become flatter and develop a hard protein called keratin. By the time they reach the stratum corneum, they are dead and filled with keratin. These are the cells that we see and feel on the surface of our skin.

5. The dead cells in the stratum corneum are constantly being shed and replaced by the new cells coming up from the lower layers. This process of cell division and replacement helps to keep the skin healthy and functioning properly.

6. In addition to replacing shed skin cells, this process also helps to repair damage to the skin, such as cuts and scrapes. The cells in the stratum basale can divide and multiply quickly to fill in the damaged area.

7. Overall, the process of cell division in the stratum basale and the shedding of cells in the stratum corneum is a continuous cycle that keeps the skin renewed and refreshed.