| 中缝大核对三叉神经脊束核尾端内神经元诱发放电的抑制作用的方式 |
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| 引用本文： | 樊英显,刘敏芝,黄民,张竞. 中缝大核对三叉神经脊束核尾端内神经元诱发放电的抑制作用的方式[J]. 吉林大学学报(医学版), 1989, 0(2) |
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| 作者姓名： | 樊英显 刘敏芝 黄民 张竞 |
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| 作者单位： | 白求恩医科大学生理教研室，白求恩医科大学生理教研室，白求恩医科大学生理教研室，白求恩医科大学生理教研室 本校口腔医院 |
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| 摘 要： | 利用对突触传递有特异效应的药物,探讨了中缝大核(NRM)对三叉神经脊束核(NST)尾端由下齿槽神经刺激引起的诱发放电的抑制作用的方式。在静脉注射印防已毒素的作用下,NRM刺激的抑制时程明显缩短;在戊巴比妥钠的作用下明显延长,而在马钱子素的作用下基本不变。实验结果提示,NRM对NST神经元的抑制作用主要属于突触前抑制。
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| 关 键 词： | 中缝大核 三叉神经脊束核 下齿槽神经 诱发放电 突触前抑制 |
Mode of inhibitory action of NRM on evoked discharging from neurons in the caudal part of NST |
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| Fan YingXian, Liu Minzhi, Huang Min, Zhang Jing. Mode of inhibitory action of NRM on evoked discharging from neurons in the caudal part of NST[J]. Journal of Jilin University: Med Ed, 1989, 0(2) |
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| Authors: | Fan YingXian Liu Minzhi Huang Min Zhang Jing |
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| Affiliation: | Fan YingXian; Liu Minzhi; Huang Min; Zhang Jing |
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| Abstract: | The mode of the inhibitory action of nucleus raphe magnus (NRM) on the nociceptive discharges from neurons in the caudal part of nucleus spinalis tract nervi trigemini (NST) evoked by stimulating the nerve alveolaris inferior (AI) was investigated by using drugs specifically effective in the synaptic transmission.The inhibitory time courses of NRM stimulation were shortened by intravenous injection of picrotoxin,but prolonged by pentobar-bital sodium. Strychnine could not change the course. The results suggest that the inhibitory effect of NRM stimulation on the nociceptive neurons in NST is mainly presynaptic in nature. |
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| Keywords: | Nucleus raphe magnus Nucleus spinalis tract nervi trigemini Evoked discharges Presynaptic inhibition |
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