. Cunningham's Text-book of anatomy. Anatomy. Ligamentum spirale Menibrana basilaris Branches of cochlear nerve to organon spirale Branch of cochlear nerve to ampulla of posterior duct Ampulla of posterior duct Sinus inferior Ductus endolymphaticus Spiral fibres Ganglion spirale Nerve-fibres which pass out between the two layers of the lamina spiralis ossea Ductus reunions Fig. 726.—Membranous Labyrinth of a Five Months' Fcetus, viewed from its postero-medial aspect (Retzius). N. Cochleae.—The cochlear nerve is distributed to the hair cells of the organon spirale, the branches for the basal an
. Cunningham's Text-book of anatomy. Anatomy. Ligamentum spirale Menibrana basilaris Branches of cochlear nerve to organon spirale Branch of cochlear nerve to ampulla of posterior duct Ampulla of posterior duct Sinus inferior Ductus endolymphaticus Spiral fibres Ganglion spirale Nerve-fibres which pass out between the two layers of the lamina spiralis ossea Ductus reunions Fig. 726.—Membranous Labyrinth of a Five Months' Fcetus, viewed from its postero-medial aspect (Retzius). N. Cochleae.—The cochlear nerve is distributed to the hair cells of the organon spirale, the branches for the basal and middle coils entering the foramina in the tractus spiralis foraminosus, those for the apical coil running in the canalis centralis of the modiolus. Extending upwards, in the bony canals of the modiolus, the nerve- fibres radiate outwards between the lamellae of the lamina spiralis ossea. Contained in the spiral canal of the modiolus, near the attached margin of the lamina, is a ganglion of bipolar nerve-cells which winds spirally round the modiolus, and is named the ganglion spirale ( ganglion of Corti) (Fig. 727); the fibres of the nerve arise from the cells of this ganglion. Beyond the ganglion spirale the nerve-fibres extend outwards, at first in bundles, and then in a more or less continuous sheet, from the outer edge of which they are again collected into bundles, which pass through the foramina nervosa of the labium tym- panicum. Beyond this they appear. Fig. -Part op Cochlear Nerve, highly magnified (Henle). as naked axis-cylinders, and, turning in a spiral manner (inner or first spiral fasciculus), send fibrillse towards the inner row of hair cells. Other fibrils run between the inner rods and form a second spiral fasciculus in Corti's tunnel, from which fibrils extend outwards across the tunnel, and, passing between the outer rods, enter Nuel's space. They form a spiral fasciculus on the inner aspect of each row of Deiters' cells, and fibrillse pass fro
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914
