What is the type of cell division that occurs in the basal layer of the skin?

In the basal layer of the skin, the primary type of cell division that occurs is mitosis. Mitosis is the process by which a parent cell divides to produce two identical daughter cells, each containing the same genetic material as the parent. This type of cell division is essential for growth, tissue repair, and regeneration in the skin.

The basal layer, also known as the stratum basale, is composed of stem cells that continuously divide to replenish the upper layers of the epidermis. As these cells undergo mitosis, they push older cells upward, where they gradually differentiate and undergo keratinization before eventually sloughing off. This regeneration process is vital for maintaining the integrity and health of the skin.

Understanding this mechanism is crucial for anyone studying skincare and aesthetics, as it relates directly to how the skin heals and maintains itself.