An American text-book of physiology . ese cells rest below on the basilar external to these groups of cells is a series of rows of tall columnar cellsof simple character supported upon the basilar membrane, and rapidly decreas-ing in height externally into a layer of cubt)idal epithelium covering the outerpart of the basilar membrane. The rods of Corti are peculiarly shaped at the THE SENSE OF HEARING. 823 top, the upper extremity of each being bent at an angle so as to project exter-nally and parallel with the basilar membrane; these projections are the pha-lanyar processes of


An American text-book of physiology . ese cells rest below on the basilar external to these groups of cells is a series of rows of tall columnar cellsof simple character supported upon the basilar membrane, and rapidly decreas-ing in height externally into a layer of cubt)idal epithelium covering the outerpart of the basilar membrane. The rods of Corti are peculiarly shaped at the THE SENSE OF HEARING. 823 top, the upper extremity of each being bent at an angle so as to project exter-nally and parallel with the basilar membrane; these projections are the pha-lanyar processes of the rods, the phalanges of the inner row overlapping thoseof the outer row. These phalangar processes of the rods form the points ofattachment—in fact, the beginning—of the reticulate membrane (viembranareticulata), a peculiar cuticular, network-like structure formed of rings andcross-bars, having the appearance of certain vegetable tissues seen under themicroscope. The reticulate membrane stretches across the outer rows of hair-. ^ Fig. of the constituents of the organ of Corti (from Foster, after Retzius): a, inner hair-cell; A, the head, seen from above; b, inner, b, outer, rod of Corti; ph, in each, is the phalangar pro-cess ; c, the twin outer hair-cell; , the cell of Corti; h, its auditory hairs; n, its nucleus; x, Hensensbody; , cell of Deiters; n, its nucleus; , its phalangar process; fil, the cuticular filament; ,basilar membrane; , reticulate membrane; c, the head of a cell of Corti, seen from above; d, theorgan of Corti, seen from above; , the heads of the inner hair-cells; , the head and phalangarpro-cess of the inner rod; , the head of the outer rod, with , its phalangar process, covered to the lefthand by the inner rods, but uncovered to the right; , the heads of the cells of Corti, supported bjthe rings of the reticulate membrane; ph, one of the phalangae of the reticulate membrane. cells, the body


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Keywords: ., bookautho, bookcentury1800, bookdecade1890, booksubjectphysiology