PATHOLOGY

Detailed explanation-1: -Skin consists of a tough connective tissue, the dermis, overlaid by a multilayered waterproof epithelium, the epidermis. The epidermis is continually renewed from stem cells, with a turnover time, in humans, of the order of a month.

Detailed explanation-2: -Cells are replaced in the epidermis by the process of mitosis. The epidermis is the outermost layer part of the skin where cells are constantly shedding due to scraping or even rubbing the skin. This layer acts as a barrier to prevent damage to the inside layers of the skin and body.

Detailed explanation-3: -The epidermis constantly renews itself: New cells are made in the lower layers of the epidermis. These move to the surface within four weeks. This constant renewal serves to replace the cells that are lost and fall to the ground as tiny flakes of skin when the skin is rubbed.

Detailed explanation-4: -New skin cells develop at the bottom layer of your epidermis (stratum basale) and travel up through the other layers as they get older. They reach the outermost layer of your epidermis after about a month, where the skin cells shed from your body as new cells develop at the bottom layer.