自律神経と蝸牛機能との関係についての実験的研究
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概要
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Changes in cochlear microphonics (CM) were observed by the injection of vegetative stimulants into the abdominal cavity, by the application of nicotine to the superior cervical ganglion, and by excision or electric stimulatian of the cervical sympathetic nerve and vagus nerve on guinea-pigs.1) C. M. is reduced by the injection of atropine and acetylcholine while it is induced at the biginnig and then reduced by the injection of pilocarpine.By the injection of adrenaline, C. M. may be either induced or reduced. according to frequency though variation is slight.By the injection of chlorpromazine, C. M. is either induced or reeuced slightly in some cases, although there are other cases of reduction in C. M.By the application of nicotine to the superior cervical ganglion, C. M. is first reduced and then induced.2) Atter the excision of the cervical sympathetic nerve, C. M. is first induced and is gradually reduced afterward.Excision of the vagus nerve has little influence on C. M. in some cases, but there are othe cases where C. M. is slightly reduced.3) Stimulation to the eervical sympathetic nerve reduces C. M., but stimulation to the vagus nerve has no influence on C. M.4) Stimulation to the superior cervical ganglion reduces degree of recovery from sound fatigue for C. M.5) Regulation of internal ear function by autonomic nervous system is likely to be occured by angioneurotic control over the blood flow, and at the seme time by adjustment to the excitability of sensory cells in the internal ear.
- 社団法人 日本耳鼻咽喉科学会の論文