. Anatomy, descriptive and applied. Anatomy. 1142 THE ORGANS OF SPECIAL SENSE terior wall is given off a canal, the ductus endolymphaticus. This duct is joined by the ductus utriculosaccularis, and then passes along the aquaeductus vestibuli and ends in a blind pouch on the posterior surface of the petrous portion of the tem- poral bone, where it is in contact with the dura. From the lower part of the saccule a short tube, the canalis reuniens of Hensen {ductus reuniens [Henseni]), passes downward and outward to open into the ductus cochlearis near its vestibular extremity. The Membranous Semi
. Anatomy, descriptive and applied. Anatomy. 1142 THE ORGANS OF SPECIAL SENSE terior wall is given off a canal, the ductus endolymphaticus. This duct is joined by the ductus utriculosaccularis, and then passes along the aquaeductus vestibuli and ends in a blind pouch on the posterior surface of the petrous portion of the tem- poral bone, where it is in contact with the dura. From the lower part of the saccule a short tube, the canalis reuniens of Hensen {ductus reuniens [Henseni]), passes downward and outward to open into the ductus cochlearis near its vestibular extremity. The Membranous Semicircular Canals (ductus seniicircidares) are about one-third the diameter of the osseous canals, but in number, shape, and general form they are precisely similar, and each presents at one end an ampulla (ampullae mem- branaceae). The canals open by five orifices into the utricle, one opening being common to the inner end of the superior and the upper end of the posterior canal. In the ampulla; the wall is thickened, and projects into the cavity as a fiddle-shaped, transversely placed elevation, the septum transversum, in which the nerves end. The utricle, saccule, and membranous canals are attached here and there to the bone by numerous fibrous bands, the so-called ligaments (ligamenta lahy- rinthi canalicularU7n).. Otolithic membrane C%lia Fig. —Floor of scala media, showing the organ of Corti, etc. Outtcnla membrani' Hair cells —L Sustentacular \^_ cells. 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 Gray, Henry, 1825-1861; Spitzka, Edward Anthony, 1876-1922. Philadelphia, New York, Lea & Febiger
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1913
