hair inner root sheath

http://purl.obolibrary.org/obo/UBERON_0005941

A multilayered tube composed of terminally differentiated hair follicle keratinocytes that is surrounded by the outer root sheath; the layers of the inner root sheath include the companion layer, Henle's layer, Huxley's layer and the inner root sheath cuticle[MP]. [ MP:0010685 https://github.com/obophenotype/mouse-anatomy-ontology/issues/56 ]

Synonyms: inner sheath of hair follicle, internal root sheath of hair follicle, inner root sheath of hair follicle, hair follicle inner root sheath