Follicle (anatomy)

A follicle is a small spherical or vase-like group of cells containing a cavity in which some other structure grows. Follicles are best known as the sockets from which hairs grow in humans and other mammals, but the bristles of annelid worms also grow from such sockets.[1]

References

  1. Ruppert, E.E., Fox, R.S., and Barnes, R.D. (2004). "Annelida". Invertebrate Zoology (7 ed.). Brooks / Cole. pp. 414–420. ISBN 0-03-025982-7.