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Flashcards in hair stages Deck (3)
1

Anagen

-Active phase of hair
-1 cm/28 days
-2-6 years
-Bulge cells activated by DP
-Root cells rapidly dividing
-New hair is formed, pushes club hair out of follicle

2

Catagen

-2-3 weeks
-Growth stops
-DP ascends toward bulge
-Fiber/root sheath stop growing due to lack of DP stimulation
-ORS shrinks, attaches to root (club hair)

3

Telogen

-100 days (scalp hair... different for other areas)
-Bottom of follicle alongside bulge
-DP isolated in dermis
-Follicle completely at rest
-Club hair completely formed
-25-100 hairs shed each day