
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; ==Outer Root Sheath== The outer root sheath corresponds with the stratum mucosum (Stratum germinativum and Stratum Spinosum) of the epidermis, and resembles it in the rounded ...
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http://en.wikipedia.org/wiki/Root_sheath

One of the epidermic layers of the hair follicle: external root sheath is continuous with the stratum basale and stratum spinosum of the epidermis; internal root sheath comprises the cuticle of the internal roots, Huxley's layer, and Henle's layer. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973

an investment of epithelial cells around the unerupted tooth and inside the dental follicle. the epithelial layer of a hair follicle, divided into an inner and an outer root sheath.
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http://www.encyclo.co.uk/local/21001

Type: Term Definitions: 1. one of the epidermic layers of the hair follicle: external root sheath is continuous with the stratum basale and stratum spinosum of the epidermis; internal root sheath comprises the cuticle of the internal roots, Huxley layer, and Henle layer.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=81451
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