Supratrigeminal neurons mediate the shortest, disynaptic pathway from the central amygdaloid nucleus to the contralateral trigeminal motoneurons in the rat.
Supratrigeminal neurons mediate the shortest, disynaptic pathway from the central amygdaloid nucleus to the contralateral trigeminal motoneurons in the rat.
复制标题
在大鼠中，三叉神经上神经元介导从中央杏仁核到对侧三叉神经运动神经元的最短的非突触通路。
DOI：
10.1016/0300-9629(86)90702-4
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
Moriyama Yukihisa
中科院分区：
文献类型：
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作者：
Ohta Masahiro;Moriyama Yukihisa
刺激大鼠三叉神经上区（STA），在对侧大多数下颌舌骨-二腹肌运动神经元产生单突触EPSP，在对侧大多数咬肌运动神经元产生单突触IPSP或EPSP。刺激杏仁中央核引起同侧STA活动，随后立即引起对侧下颌舌骨神经活动。同一杏仁核刺激46个STA神经元中的19个兴奋，这些神经元被逆向鉴定为投射到对侧三叉神经运动核。其中9个是单突触兴奋。这些神经元的逆向和单突触潜伏期的平均值解释了杏仁核对侧三叉神经运动神经元的影响的平均起始潜伏期。因此，最短的交叉杏仁核运动神经元通路可能是双突触的，并通过连合STA神经元介导。
Stimulation of the supratrigeminal area (STA) of the rat induced a monosynaptic EPSP in most mylohyoid-digastric motoneurons and a monosynaptic IPSP or EPSP in the majority of masseteric ones, contralaterally. Stimulation of the central amygdaloid nucleus induced the ipsilateral STA activity immediately followed by the contralateral mylohyoid nerve activities. The same amygdaloid stimulated excited 19 of 46 STA neurons, which were antidromically identified to project to the contralateral trigeminal motor nucleus. Nine of these were monosynaptically excited. The mean of the antidromic and monosynaptic latencies of these neurons explains the mean onset latencies of the amygdaloid influences on the contralateral trigeminal motoneurons. Therefore, the shortest crossing amygdalo-motoneuronal pathway is probably disynaptic and mediated by commissural STA neurons.