Figure 14.2. Life cycle of a mammalian hair follicle.

Figure 14.2

Life cycle of a mammalian hair follicle. As the follicle moves from the rest phase to the growth phase, the follicular germ region moves downward and becomes an active site of cell division. Transit cells from the follicular germ move upward to form the growing hair. After a growth phase, the follicular germ region regresses to reform the rest phase morphology. From Potten and Booth (2002).

From: Chapter 14, Cell Lineage History

Cover of Dynamics of Cancer
Dynamics of Cancer: Incidence, Inheritance, and Evolution.
Frank SA.
Princeton (NJ): Princeton University Press; 2007.
Copyright © 2007, Steven A Frank.

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