Assertion: epidermis's cell | /r/MadeOf | pigment granules
Facets:
Source sentences:
text: This inner sheath is composed of three layers, known respectively as Henle’s layer (the outermost), consisting of horny, fibrous, oblong cells; Huxley’s layer, with polyhedral, nucleated cells containing pigment granules; and the cuticle of the root sheath, having a layer of downwardly imbricate scales (overlapping like roof tiles) that fit over the upwardly imbricate scales of the hair proper.