以往动物实验表明,间接刺激喉返神经及其分支能可逆性控制声带的运动。进一步的研究表叫刺激频率与刺激部位、深浅有关。但过去一些实验均是在深度麻醉下,无意识无反射性抵抗的动物身上完成的,而且忽视了直接观测实验动物的声带位置和监测喉痉挛时喉内肌的肌电图,同时还忽略了测量声门内压。本实验为了克服上述缺陷,首先对声带位 Previous animal experiments show that indirectly stimulate the recurrent laryngeal nerve and its branches can reversibly control the vocal cords movement. A further study called the stimulus frequency and stimulation site, the depth. However, in the past, some experiments were performed on animals under deep anesthesia and unconscious non-reflexive resistance, and ignored the direct observation of experimental vocal cords and the electromyography of laryngeal muscles during laryngospasm, while neglecting the measurement Sonogamy pressure. In order to overcome the above defects in this experiment, first of all, the vocal cords