内耳リンパ循環障碍に関する実験的研究 : 第1編頂盲端実験
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Part1.ExperimtsonHelicotrema. The author tried to observe histologically how the tissues of the internal ear are affected by injuring the helicotrema of guinea-pigs and thus causing impediment in the pathway of the labyrinthine fluid. The results were as fellows: 1.By opening or closing the helocotrema and disturbing the circulation of the labyrinthine fluid, obvious morphological changes were induced in the cochlear and the vestibular parts. 2.As the changes in the endo-and peri-lymphatic spaces, narrowing of the enaolymphatic space was observedin the animals with the helicotrema cut open and dilatation of it in those with closed helicotrema. 3.It seems probable that a barrier membrane is to be found in the cochlear aquaeduct, and that the latter, beside its function as a pathway to perlymph, acts as a defenderagainst invasion of foreign matters by its reticular formation. 4.No perceptible change was observed in the stria vascularis or the spiral ligament. 5.The sensory cells, after lapse of time in the experiment, showed slight degenerative changes- 6.No change was noted in the endolymphatic sac. From the above findings, it was found undeniable that a part of the perilymph originates in the wall of the membranous labyrinth, though mainly it comes through the cochlear aquaeduct from the cerebrospinalfluid, while the endolymph, though mainly derived from blood vessels, is partially derived also from the membranous part of the vestibule.
- 社団法人 日本耳鼻咽喉科学会の論文