Which structure is responsible for hair growth and contains the dermal papilla?

The follicle is responsible for hair growth and is the structure that contains the dermal papilla. The dermal papilla is a specialized structure located at the base of the hair follicle, providing essential nutrients and signals to the hair matrix that promote hair growth. It is composed of connective tissue and contains blood vessels that supply the growing hair with necessary nutrients and oxygen.

During the hair growth cycle, the interaction between the dermal papilla and the epidermal cells in the hair bulb is crucial as it influences the hair's growth rate and health. This relationship explains why the follicle, including its associated structures, is central to hair growth. Understanding the role of the follicle and dermal papilla helps clarify the processes involved in hair development and overall hair health.