Pronunciation:
PAP-i-la • (noun)
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Definition:
The papilla is the very bottom portion of the hair follicle that contains the blood supply and the matrix. The matrix consists of cells that actually form the hair shaft. The papilla is active during the anagen phase, is separated from the hair shaft during the catagen phase, and is completely inactive during the telogen phase.
Related Terms
• Club Hair
• Hair Follicle
• Pilosebaceous Unit
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Hair Papilla
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