Hair follicle

the hair follicle is a hollow segment of the epidermis that extends downwards to the dermis. The follicle is a thin bag made of epidermal tissue that’s bulb-shaped at its lower part. Hair follicles produce hairs. Each follicle is fed by a papilla.(The papilla of a hair follicle is an indentation at the base of the bulb of the hair. It contains many blood vessels that supply nutrients to nourish the growing hair.)