MICROANATOMY

Detailed explanation-1: -The hair papilla, which supplies the hair root with blood, is found inside the bottom of the hair bulb. New hair cells are constantly being made in the hair bulb, close to the papilla.

Detailed explanation-2: -The papilla is a large structure at the base of the hair follicle. The papilla is made up mainly of connective tissue and a capillary loop. Cell division in the papilla is either rare or non-existent. Around the papilla is the hair matrix. A root sheath composed of an external and internal root sheath.

Detailed explanation-3: -The hair bulb is the region of the follicle which actively produces hair. It extends into the dermal layer of the skin and surrounds the dermal papilla, an important structure derived from mesenchyme, made of rich stroma, associated nerve fibers, and a loop of the capillary that supplies nutrients.