Suzuki M, Harada Y
Arch Otorhinolaryngol. 1985;241(3):237-42. doi: 10.1007/BF00453694.
In the present study, the posterior semicircular canal of the frog was isolated and the entire cupula was exposed after cutting the ampullary wall. The surfaces of the utricle and the lateral cupula were depressed by a fine glass pipette. Action potentials were taken from the posterior ampullary nerve and were compared by using nine points of stimulation on the cupular surface of the utricular side and two points on the lateral surface. The maximum action potential was recorded at stimulus to the lowest point on the utricular side surface. This potential proportionally decreased as the stimulation point approached the top of the cupula. Depression of the lateral surface evoked only a small potential. In contrast to the stimulus applied to the utricular surface, a stimulus to the upper point of the lateral surface yielded a greater potential than did a stimulus to the lower point.
在本研究中，分离出青蛙的后半规管，切开壶腹壁后暴露整个壶腹嵴。用细玻璃微管压低椭圆囊和外侧壶腹嵴的表面。从后壶腹神经记录动作电位，并通过在椭圆囊侧壶腹嵴表面的九个刺激点和外侧表面的两个刺激点进行比较。在刺激椭圆囊侧表面最低点时记录到最大动作电位。当刺激点接近壶腹嵴顶部时，该电位成比例下降。压低外侧表面仅诱发小电位。与施加于椭圆囊表面的刺激相反，刺激外侧表面的上点比刺激下点产生更大的电位。
