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Vestibular Sensory OrgansA Scanning Electron Microscopic Investigation
David J. Lim, MD
Arch Otolaryngol. 1971;94(1):69-76.
Abstract
Using the scanning electron microscope and freeze-drying techniques, the vestibular organs (utricle, saccule, and crista ampullaris) of various experimental animals were examined with results showing that directional arrangement of sensory hairs polarize along the striola. In the utricle, they face each other along the striola, whereas in the saccule, they face away from each other. The sensory hairs in both saccule and utricle are shorter than in the crista ampullaris. The otolithic membrane in the utricle and saccule possesses oval or honeycomb-like holes along the striola. In the cupula, tubules were found with opened top portions. In both the otolithic membrane and cupula, the sensory hairs were not totally embedded in gelatin as was postulated; rather, only the longer hairs were touching the otolithic membrane.
Author Affiliations
Columbus, Ohio
From the Otological Research Laboratories, Department of Otolaryngology, Ohio State University College of Medicine, Columbus.
Footnotes
Accepted for publication Feb 19, 1971.
This study was presented in part as a scientific exhibit at the 74th annual meeting of the American Academy of Ophthalmology and Otolaryngology, October 1969.
Reprint requests to the Otological Research Laboratories, 410 W 10th Ave, Columbus, Ohio 43210 (Dr. Lim).
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