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喉返神经是迷走神经的一个分支,它支配喉部肌肉(环甲肌除外)和声门裂以下的喉部粘膜,对声门的开放和关闭起着重要的调节作用,和高等动物的发声及防止异物的侵入下呼吸道等有着密切的关系。喉返神经的放电常随呼吸运动而变化,且易受很多因素的影响。在研究针刺麻醉与内脏牵拉反应时,有些单位曾以喉返神经的传出放电,作为恶心、呕吐、呻呤及屏息等的指标,以反映胃牵拉反应。但有人认为家兔喉返神经中尚含有从胸腔上行的传入神经纤维,这与过去文献中所报导的略有不同,为了更好的利用喉返神经传出放电作为研究针麻原理的指标,我们对此做了进一步的观察。
The recurrent laryngeal nerve is a branch of the vagus nerve that dominates the laryngeal mucosa below the laryngeal muscles (except for the cricothyroid) and glottis, playing an important regulatory role in the glottis opening and closing, as well as the vocalization of higher animals To prevent the intrusion of foreign body, such as the lower respiratory tract has a close relationship. Recurrent laryngeal nerve discharge often changes with the respiratory movement, and susceptible to many factors. In the study of acupuncture anesthesia and visceral traction reaction, some units have recurred to the recurrent laryngeal nerve discharge, as nausea, vomiting, groaning and breath-holding indicators to reflect the gastric pull response. However, some people think that the rabbit recurrent laryngeal nerve contains upward from the chest into the afferent nerve fibers, which reported in the past literature slightly different, in order to make better use of recurrent laryngeal nerve discharge as an indicator of acupuncture principles We have further observed this.