EMBRYONIC DEVELOPMENT & STEM CELL COMPENDIUM
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All Anatomical Compartments > Compartment Card
Hair >

Companion Layer


Hair.CpL
The companion layer, much like the hair shaft (HS) and the inner root sheath (IRS), is derived from the hair matrix. It is situated between the IRS and the ORS. The companion layer does not undergo cornification. Its precise physiological function remains unknown.
Hair Follicle
Companion Layer
Multiple Ancestors Single Ancestor No Descendants Develops from Part of Parent
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