| 蟾蜍外周神经条件剌激对C类传入终末兴奋性的影响 |
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| 引用本文： | 江赛男,牛汉璋,李强. 蟾蜍外周神经条件剌激对C类传入终末兴奋性的影响[J]. 西安交通大学学报(医学版), 1988, 0(4) |
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| 作者姓名： | 江赛男 牛汉璋 李强 |
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| 作者单位： | 西安医学院生理学教研室(江赛男，牛汉璋)，西安医学院生理学教研室(李强) |
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| 摘 要： | 本实验以蟾蜍为对象,断脑成脊髓动物,记录了由刺激背根进入区所引起的逆向C波,并观察了坐骨神经混合干60T强度的条件刺激对逆向C波的影响。结果表明:条件刺激可使逆向C波波幅增加,即兴奋性升高,并具两个时相,从而提示:外周初级传入各类纤维均能引起C类纤维终末的突触前抑制活动。
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| 关 键 词： | 突触前抑制 背根电位 兴奋性 初级传入去极化 |
INFLUENCES OF CONDITIONING STIMULI OF PERIPHERAL NERVE ON C-FIBRE AFFERENT TERMINAL EXCITABILITY IN SPINAL TOADS |
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| Jiang sainan,et al. INFLUENCES OF CONDITIONING STIMULI OF PERIPHERAL NERVE ON C-FIBRE AFFERENT TERMINAL EXCITABILITY IN SPINAL TOADS[J]. Journal of Xi‘an Jiaotong University:Medical Sciences, 1988, 0(4) |
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| Authors: | Jiang sainan et al |
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| Affiliation: | Department of physiology |
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| Abstract: | The antidromic C waves elicited by stimulating the entry zone of the dorsal root were recorded in spinal toads. Influences if conditioning stimuli in 60 T from sciatic nerve on antidromic C waves were observed. The conditioning stimuli produced marked increace in the excitability of the C-afferent terminals. The increased excitability possessed two phases. The results indicat that periphiral primary afferent A and C-fibres can produce presynaptic inhibition in C-fibre terminals. |
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| Keywords: | presynaptic inhibition dorsal root potential (DRP) exeitability primary a fferent depolarization |
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