正常耳石器の耳石形成過程に関する研究 (前庭機能異常の研究-2-<特集>)

概要

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Utricular macula of the normal guinea pigs were studied. The surface of the sensory epithelia of the macula was examined using SEM and X-ray microanalyzer. Some specimens were also freeze-cracked and observed in the same way. Numerous granular substances were observed on the surface of the sensory epithelia. It was also found that these granular substances were transformed into the otolithic crystal. There were many protrusions from the surface of the supporting cells surrounding the sensory hair cells. These protrusions and granular substances contained some amount of calcium. In the cracked specimens, small granules were found in some cells and these granules also contained some amount of calcium. Therefore, it is suggested that precursors of otoconia may be secreted from the supporting cells.
耳鼻咽喉科臨床学会の論文