PATHOLOGY

Detailed explanation-1: -The dermal papilla (DP) of the hair follicle is both a chemical and physical niche for epithelial progenitor cells that regenerate the cycling portion of the hair follicle and generate the hair shaft.

Detailed explanation-2: -Anatomy of a follicle The root of the hair is made up of protein cells and is nourished by blood from nearby blood vessels. As more cells are created, the hair grows out of the skin and reaches the surface. Sebaceous glands near the hair follicles produce oil, which nourishes the hair and skin.

Detailed explanation-3: -The dermal papilla contains capillaries. The papilla interacts with the matrix, which has the highest mitotic rate of any organ. The matrix is the part of the hair follicle where matrix keratinocytes proliferate to form the hair shaft of growing hair.

Detailed explanation-4: -The dermal papilla consists of mesenchymal cells which function in the regulation of hair growth. This connective tissue structure also contains blood vessels and nerve endings which supply oxygen and nutrients to the root of the hair.