Skin Cell Division Process

Skin cells die slough off and are replaced by new skin cells.

Skin cell division process. Mitosis is a type of cellular division in which one cell called the parent divides into two identical daughter cells reports dawn tamarkin ph d of springfield technical community college. Before a dividing cell enters mitosis it undergoes a period of growth called interphase. This is depicted in the diagram as cells that cease division also known as the g 0 phase or the resting phase the term resting phase is a misnomer however. The full process or cycle of mitosis is described in more detail below.

Many cells in an adult are not actively in the process of replicating. The deepest layer is the subcutis which is beneath the dermis and the outermost layer is the epidermis. Skin cells grow and divide in the basement membrane. After an injury to the skin white blood cells move to the wound followed by various immune cells and then other cells follow.

Examples of cells that are produced through mitosis include cells in the human body for the skin blood and muscles. The process slows down as you get older but it never stops. Cells divide for many reasons. The desquamation process happens in the outermost layer of the skin called the epidermis the epidermis itself has four unique layers.

The diagram to the right summarizes events leading to cell division. This process is repeated until the cycle is complete. About 90 percent of a cell s time in the normal cell cycle may be spent in interphase. We call this process cell division and cell reproduction because new cells are formed when old cells divide.

This process of renewal is basically exfoliation shedding of the epidermis. Skin cells belong in the category of somatic cells and are duplicated at a rapid rate during life. Regulation of cell division. In comparison brain and nerve cells seldom reproduce.

Desquamation is the natural process in which skin cells are created sloughed away and replaced. Cell division occurs through a six phase mitosis process in which a somatic cell divides into two completely identical cells. The period prior to the synthesis of dna in this phase the cell increases in mass in preparation for cell division. The cells in the superficial or upper layers of skin known as the epidermis are constantly replacing themselves.

Why do cells divide. The skin possesses three layers. Each layer of skin regenerates in response to injury using a different process. The original cell is called the mother cell and the two new cells are called daughter cells.