What is the cone-shaped projection at the base of the hair called?

The cone-shaped projection at the base of the hair is referred to as the papilla. This structure is crucial because it contains the blood vessels and nerves that nourish the hair follicle, providing the necessary nutrients for hair growth and development. The papilla plays a significant role in the hair growth cycle, signaling when to grow and when to shed hair. Therefore, its proper functioning is essential for healthy hair.

While terms like bulb, follicle, and root are related to hair and its anatomy, they refer to different aspects of the hair structure. The bulb refers to the rounded part of the hair follicle where hair growth occurs, while the follicle is the entire structure that encases the hair root. The root is the part of the hair that is embedded in the follicle. Understanding these distinctions helps clarify the specific role of the papilla in hair growth and health.