突触前抑制是通过突触前轴突末梢兴奋而抑制另一个突触前膜的递质释放，从而使突触后神经元呈现出抑制性效应的现象。
突触前抑制(presynaptic inhibition):由于突触前膜释放的兴奋性递质减少,使突触后神经元产生的EPSP减小,达不到邻近膜的阈电位而产成的抑制效应.13.
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突触前抑制 ( presynaptic inhibitory ) ， 突触后抑制(postsynaptic inhibitory)
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·2,447,543篇论文数据，部分数据来源于NoteExpress
传入性肌肉内神经节突触前抑制作用的减弱影响了那些支配拮抗肌传入性的中间神经元对拮抗肌的抑制作用，导致了这种互相抑制作用的衰减。
This decreased reciprocal inhibition is due to reduced presynaptic inhibition of the muscle afferent input onto the inhibitory Ia interneuron innervating the muscle antagonist to the input.
例如，人们普遍认为，内源性大麻素抑制多巴胺的释放和减少锥细胞和双极细胞释放突触前递质。
For example, there is general agreement that cannabinoids suppress dopamine release and presynaptically reduce transmitter release from cones and bipolar cells.
目的了解依托咪酯是否通过抑制突触前神经递质释放而影响中枢突触传递的。
Purpose to identify whether etomidate could depress KCl-induced neurotransmitters release from nerve terminals, which underlie central synaptic transmission inhabitation.
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