What is the name of the portion of the hair found beneath the skin surface?

The portion of the hair found beneath the skin surface is known as the hair root. The hair root is the part of the hair that is located below the surface of the skin and plays a crucial role in anchoring the hair in the hair follicle. It is the part of the hair that is enveloped in the follicle and is where essential processes such as growth and nourishment occur. The root is connected to the blood supply that delivers nutrients necessary for hair health.

Understanding the hair structure is vital in barbering and cosmetology, as it informs various hair treatments and services. The hair shaft, for instance, is the visible part that extends above the skin, while the hair follicle encompasses the entire structure that houses the root. The hair bulb, located at the base of the root within the follicle, is where cell division occurs, contributing to hair growth. Each component has its significance, but when discussing the portion beneath the skin, the hair root is the correct term.