. Elements of histology. Histology. Chap. XLI.] The Internal Ear. 329 there is also a hyaline basement membrane. The endothelial cells covering this on the tympanic surface have been mentioned above* 477. The organ of Corti (Fig. 164).—Passing outwards from the epithelium lining the sulcus spiralis, we meet with small polyhedral epithelial cells in the region of the termination of the lamina spiralis ossea, next which are columnar-looking cells—the inner" supporting cells; next to these is the inner hair-cell—. Fig. 164.—Organ of Corti of the Cochlea of a Guinea-pig. a, Outer rod or pilla
. Elements of histology. Histology. Chap. XLI.] The Internal Ear. 329 there is also a hyaline basement membrane. The endothelial cells covering this on the tympanic surface have been mentioned above* 477. The organ of Corti (Fig. 164).—Passing outwards from the epithelium lining the sulcus spiralis, we meet with small polyhedral epithelial cells in the region of the termination of the lamina spiralis ossea, next which are columnar-looking cells—the inner" supporting cells; next to these is the inner hair-cell—. Fig. 164.—Organ of Corti of the Cochlea of a Guinea-pig. a, Outer rod or pillar of Corti; b, inner rod or pillar of Corti; c, tunnel of Corti's arch; d, outer hair-cells; e, inner hair-cell; /, outer supporting cells contain- ing fat globules; g, inner supporting cells; h, cells of Claudius; i, epithelial cells lining the sulcus spiralis internus;.?, nerve-fibres; k, part of crista spiralis. (Atlas.) a columnar, or conical, epithelial cell, with a bundle of stiff hairs, or rods, extending beyond the surface. The inner hair-cells form a single file along the whole extent of the two and a half turns of the scala media. 478. Next to the inner hair-cell is the inner rod, or inner pillar, of Corti, and next to this the outer rod, or outer pillar, of Corti. Each forms a single file for the whole extent of the two and a half turns of the scala media. The two rods are inclined towards one another, and in contact with their upper extremity, or head; whereas their opposite extremity, the foot, rests under an acute angle on the membrana basilaris, on which it is firmly fixed. The rest of the rod is a slender, more or less cylindrical, piece—the body. The. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Klein, E. (Edward), 1844-1925. Philadelphia : H. C. Lea's Son
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