Root sheath

The inner or epidermic coat of the hair follicle is closely adherent to the root of the hair, and consists of two strata named respectively the outer and inner root sheaths.

Root sheath
Transverse section of hair follicle.
Anatomical terminology

Outer Root Sheath

The outer root sheath corresponds with the stratum mucosum (Stratum germinativum and Stratum Spinosum)[1] of the epidermis, and resembles it in the rounded form and soft character of its cells; at the bottom of the hair follicle these cells become continuous with those of the root of the hair.

Inner Root Sheath

The inner root sheath consists of

The term "trichilemmal" refers to the outer root sheath.[2]

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References
  1. "The Common Integument - Gray's Anatomy of the Human Body - Yahoo! Education". Archived from the original on 2008-01-19. Retrieved 2007-12-08.
  2. trichilemmal: Definition and Much More from Answers.com
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