鼓室階外リンパ酸素分圧に関する研究 : 第II報自律神経に対する負荷

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In order to study the effect of the cervical symathetic nerve on the oxygentension of the perilymph, cervical sympathetic nerve was cut at the central part from the upper cervical sympathetic ganglion, and was stimulated by an electric current. Oxygentension of perilymph was not affected. Cervical sympathetic nerve was stimulated by the electric stimulator, when oxygentension of perilymph was increasing by inhalation of 90% O2 + 10% CO2 gas mixture.Increase of oxygentension was inhibited and it appeared again after cessation of the electric stimulation. Intravenous injection of Phenoxybenzamine caused low blood pressure and low oxygentension of perilymph, but oxygentension recovered after dropping in the first stage. This reaction suggest the blocking effect of the α-receptor. I speculated the presence of sympathetic control that α-receptor is predominant.
社団法人日本耳鼻咽喉科学会の論文