Hair follicle
: A sac from which a hair grows and into which the sebaceous (oil) glands open. The follicle is lined by cells derived from the epidermal (outside) layer of skin. "The human hair follicle is a dynamic structure that generates hair through a complex and exquisitely regulated cycle of growth and remodelling governed by numerous genes," Siobhán A. Jordan has noted in Molecular Medicine Today.
* * *
hair follicle n the tubular epithelial sheath that surrounds the lower part of the hair shaft and encloses at the bottom a vascular papilla supplying the growing basal part of the hair with nourishment
* * *
a sheath of epidermal cells and connective tissue that surrounds the root of a
hair.
* * *
folliculus pili.
Medical dictionary.
2011.