椭圆囊的定向兴奋性：热对流刺激研究

Directional excitability of the utricle: a study by thermoconvective stimulation.

作者信息

Suzuki M, Aoki M, Kadir A

机构信息

Department of Otolaryngology, Hiroshima University School of Medicine, Japan.

出版信息

ORL J Otorhinolaryngol Relat Spec. 1994 Sep-Oct;56(5):269-72. doi: 10.1159/000276671.

DOI:10.1159/000276671

PMID:7970611

Abstract

The frog utricular macula was stimulated by thermoconvective flow in four different directions. The evoked utricular nerve action potentials were recorded via a glass suction electrode. The maximum spikes and the time constants of the potentials were counted. The spike counts and the time constants were not significantly different among stimuli. This suggests that the utricle has the same physiological excitability to any directional stimulus.

摘要

通过四个不同方向的热对流来刺激青蛙的椭圆囊斑。通过玻璃吸引电极记录诱发的椭圆囊神经动作电位。计算电位的最大尖峰数和时间常数。不同刺激之间的尖峰计数和时间常数没有显著差异。这表明椭圆囊对任何方向的刺激都具有相同的生理兴奋性。