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:
“O Time and Change!—with hair as gray
As was my sire’s that winter day,
How strange it seems, with so much gone
Of life and love, to still live on!”
—John Greenleaf Whittier (1807–1892)