Hair matrix

Hair Matrix

The Hair Matrix, also known as the Matrix, is a part of the hair follicle that plays a crucial role in hair growth. It is located at the base of the hair follicle, surrounding the hair papilla.

Structure

The hair matrix is a layer of cells that surrounds the dermal papilla at the base of the hair follicle. These cells are some of the most rapidly dividing cells in the human body. They receive nutrients from the dermal papilla and produce the cells that will eventually become the hair shaft and the inner root sheath.

Function

The primary function of the hair matrix is to produce new cells that will form the hair shaft and the inner root sheath. As these cells are pushed upwards by the production of new cells beneath them, they harden and undergo a process called keratinization, eventually forming the hair that is visible on the scalp.

Clinical significance

Abnormalities or damage to the hair matrix can lead to a variety of hair disorders. For example, alopecia can occur if the hair matrix cells do not divide properly, leading to hair loss. Similarly, damage to the hair matrix from radiation or chemotherapy can lead to hair loss.

See also

• Hair follicle
• Hair growth
• Alopecia