MICROANATOMY

Detailed explanation-1: -Each hair sits in a cavity in the skin called a follicle. Over time the follicle can shrink causing the hair to become shorter and finer. Ordinarily, the hair should grow back but in men who are balding the very small follicle ceases to grow any hair.

Detailed explanation-2: -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-3: -The hair follicle develops from thickening in ectodermal tissue called a placode which forms as a result of numerous biochemical signals. Surrounding dermal cells conjugate the placode and form a hair germ or bud. The hair bud proliferates and invaginates into the dermis to form the hair peg.