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layer of cells surrounding and supporting the hair follicle

The Outer Root Sheath (ORS) is a layer of cells that surrounds the hair follicle, providing structural support and playing a crucial role in the growth and cycling of hair. It extends from the epidermis down to the hair bulb and is involved in the regeneration of the hair follicle after shedding.

Related Terms

• Inner Root Sheath
• Hair Follicle
• Hair Shaft
• Human Outer Root Sheath Cells
• Outer Root Sheath Keratinocytes
• Hair Follicle Sheath
• Hair Root Sheath
• Trichilemmal Cysts
• Hair Follicles
• Hair Follicle Bulge