家兔面神经核背内侧区和腹内侧区注射乙醇对颏舌肌肌电活动的影响  

Effects of ethanol injected into the dorsal medial area and ventral medial area of nucleus facialis on myoelectric activities of genioglossus in rabbits

作　　者：王丽[1] 徐欣[2] 刘磊[1] 

机构地区：[1]山东医科大学基础医学院生理学教研室,山东济南250012 [2]卫生部耳鼻喉科学重点实验室,中国睡眠呼吸障碍研究中心,山东济南250012

出　　处：《中国神经科学杂志》2000年第2期126-129,共4页

基　　金：山东省科学技术委员会基金

摘　　要：实验在 60只氨基甲酸乙酯麻醉、断双侧迷走神经的健康成年家兔上进行。观察了面神经核背内侧区 ( dm NF)和腹内侧区 ( vm NF)分别微量注射不同浓度的乙醇对颏舌肌肌电活动的影响。结果如下 :1在dm NF内微量注射不同浓度的乙醇 ,导致颏舌肌肌电活动明显抑制 ,肌电积分幅度下降 ,呼吸频率增快 ,抑制作用随乙醇浓度的增加而增强 ;2在 vm NF内微量注射不同浓度的乙醇导致颏舌肌肌电活动明显增强 ,肌电积分幅度升高 ,呼吸频率减慢 ,增强作用随乙醇浓度的增加而增强。本研究结果表明 ,乙醇亦可通过呼吸相关性核团 dm NF和 vm NF发挥对颏舌肌活动的调节作用。Effects of different concentrations of ethanol microinjected respectively into the dorsal medial area of nucleus facialis (dmNF)and ventral medial area of nucleus facialis(vmNF)on myoelectric activities of genioglossus were observed in 60 urethane anaesthetized and vagotomized rabbits.The results are as follows:①Microinjection of different concentrations of ethanol into the dmNF inhibited myoelectric activities of genioglossus.②Microinjection of different concentrations of ethanol into vmNF caused facilitation of myoeletric activities of genioglossus.There are dosage dependences in these effects.The above results suggest that microinjection of ethanol into the dmNF and vmNF regulated the myoelectric activities of genioglossus. [

关 键 词：面神经 核背内侧区 核腹内侧区 颏舌肌 乙醇 兔 

分 类 号：R363[医药卫生—病理学]