Question

How are hairs formed?

Answer 1

Answer:

Pilosebaceous follicles are structures that give rise to hair, through a tubular invagination. They consist of a hair bulb and a dermal papilla. The dermal papilla formed by fibroblastic cells is responsible for the control of the hair cycle; while the hair bulb is the proliferative part formed by three or four cell layers precursor to the cellular elements.