Hair Transplant Nurse/ Technician Question:
What is companion Layer?
Answer:
In between the outer root sheath (ORS) and the inner root sheath (IRS) of the hair follicle lies the companion layer, which is a single layer of flattened cells. The companion layer acts a slippage plane to allow the IRS-sheathed hair shaft to move up in conjunction with Henle’s layer while the ORS remains stationery.
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