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MODULATING EFFECTS OF DORSAL MEDIAL AREA OF NUCLEUS FACIALIS ON THE MYOEIECTRIC ACTIVITIES OF GENIOGLOSSUS IN RABBITS
Author(s): 
Pages: 230-232
Year: Issue:  3
Journal: ACTA ACADEMIAE MEDICINAE SHANDONG

Keyword:  面神经核背内侧区颏舌肌电生理学;
Abstract: 目的:研究电、化学刺激面神经核背内侧区(dMNF)对颏舌肌肌电活动的影响.方法:在24只氨基甲酸乙脂麻醉、断双侧迷走神经的健康成年家兔上进行实验.结果:①长串电脉冲刺激dMNF导致颏舌肌肌电活动明显增强;②在dMNF内微量注射谷氨酸钠,颏舌肌肌电活动出现明显的易化效应;③单脉冲电刺激dMNF引起颏舌肌出现两次肌电反应,潜伏期分别为(50.8±0.6)ms和(94.7±0.5)ms.结论:dMNF对颏舌肌的肌电活动具有调节作用,dMNF的兴奋能增强颏舌肌的肌电活动,从而具有降低上呼吸道阻力的作用.
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