A hair follicle is a mammalian skin organ that produces hair. Hair production occurs in phases, including a growth phase (anagen), and cessation phase (catagen), and a rest phase (telogen). Stem cells are principally responsible for the production of hair.
Read more about Hair Follicle: Morphogenesis, Hair-follicle Cycling, Hair Follicles in Hair Restoration, Additional Images
Famous quotes containing the word hair:
“... my mother ... piled up her hair and went out to teach in a one-room school, mountain children little and big alike. The first day, some fathers came along to see if she could whip their children, some who were older than she. She told the children that she did intend to whip them if they became unruly and refused to learn, and invited the fathers to stay if they liked and she’d be able to whip them too. Having been thus tried out, she was a great success with them after that.”
—Eudora Welty (b. 1909)