What process primarily occurs in the hair bulb?

The process that primarily occurs in the hair bulb is cell mitosis. The hair bulb is located at the base of the hair follicle and is crucial for hair development. Within the bulb, there are specialized cells called dermal papillae and matrix cells. The matrix cells divide rapidly through a process known as mitosis, which is essential for producing new hair cells. As these cells multiply, they push older cells upwards, causing hair to grow longer.

This growth occurs during the anagen phase of the hair growth cycle, when the hair is actively growing. Therefore, the primary activity of the hair bulb is indeed related to cell mitosis, making it a vital area for hair production and regeneration.

Understanding this can help in various aspects of esthetics and hair care, as it provides insight into how hair grows and the factors that can influence hair health and growth cycles.