Skin Cell Division Process

Regulation of cell division.

Skin cell division process.

This process is repeated until the cycle is complete. After an injury to the skin white blood cells move to the wound followed by various immune cells and then other cells follow. For example when you skin your knee cells divide to replace old dead or damaged cells. Skin cells die slough off and are replaced by new skin cells.

Examples of cells that are produced through mitosis include cells in the human body for the skin blood and muscles. Skin cells grow and divide in the basement membrane. Skin cells belong in the category of somatic cells and are duplicated at a rapid rate during life. The skin possesses three layers.

The original cell is called the mother cell and the two new cells are called daughter cells. Many cells in an adult are not actively in the process of replicating. The desquamation process happens in the outermost layer of the skin called the epidermis the epidermis itself has four unique layers. Cell division occurs through a six phase mitosis process in which a somatic cell divides into two completely identical cells.

This process of renewal is basically exfoliation shedding of the epidermis. Before a dividing cell enters mitosis it undergoes a period of growth called interphase. The cells in the superficial or upper layers of skin known as the epidermis are constantly replacing themselves. The deepest layer is the subcutis which is beneath the dermis and the outermost layer is the epidermis.

In the case of skin cells it takes place in the basal layer of the epidermis. Why do cells divide. Desquamation is the natural process in which skin cells are created sloughed away and replaced. The full process or cycle of mitosis is described in more detail below.

The process slows down as you get older but it never stops. Cells divide for many reasons. Each layer of skin regenerates in response to injury using a different process. The period prior to the synthesis of dna in this phase the cell increases in mass in preparation for cell division.

The ability of cells to divide is unique for living organisms. About 90 percent of a cell s time in the normal cell cycle may be spent in interphase. In comparison brain and nerve cells seldom reproduce. 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.