Textbook of normal histology: including an account of the development of the tissues and of the organs . uro - epitheliumanywhere organ of Corti extends the entire length of the cochlear duct,with the exception of a short distance within the blind terminal sacsat the two ends of the canal, where the neuro-epithelium is general it consists of a series of epithelial arches formed bythe interlocking of the ends of two converging greatly modifiedepithelial cells, the pillars or rods of Corti, upon the inner andouter sides of which rest groups of neuro-epithelium ; the tr
Textbook of normal histology: including an account of the development of the tissues and of the organs . uro - epitheliumanywhere organ of Corti extends the entire length of the cochlear duct,with the exception of a short distance within the blind terminal sacsat the two ends of the canal, where the neuro-epithelium is general it consists of a series of epithelial arches formed bythe interlocking of the ends of two converging greatly modifiedepithelial cells, the pillars or rods of Corti, upon the inner andouter sides of which rest groups of neuro-epithelium ; the tri-angular space included between the converging pillars of Corti aboveand the basilar membrane below constitutes the tunnel of Corti,which is, therefore, only an intercellular space of unusual size,containing probably a soft semi-fluid intercellular substance servingto support the nerve-fibrils traversing the space. Examined in detail, the pillars or rods of Corti prove to be com-posed of two parts, the denser substance of the pillar properand a thin imperfect protoplasmic envelope, which presents a. 6 Section of Cortis organ from guinea-pigs cochlea : 57, scalatympani; TC, tunnel of Corti; a, bony tis-ue of spiral lamina ;b, fibrous tissue covering same continued as substantia propriaof basilar membrane ; c, c, protoplasmic envelope of Cortispillars (e, e) ; d, endothelial plates ; f, heads of pillars contain-ing oval areas ; g, head-plates of pillars ; h, h, inner and outerhair-cells; m, membrana reticularis; k, I, cells of Hensen andof Claudius; n, nerve-iibres ; i, cells of Deiters. THE ORGAN OF HEARING. 393 triangular nucleated thickening at the base directed towardsthe cavity of the tunnel. Each pillar possesses a slender slightly-S-shaped longitudinally-striated body, whose upper end terminates in the triangular head,and whose lower extremity expands into the foot resting upon thebasilar membrane. The inner pillar is shorter, more perpendicular,and less curved than the o
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Keywords: ., bookauthorpiersolgeorgeageorgea, bookcentury1800, bookdecade1890
