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为了进一步搞清三叉神经中脑核(Vine)向丘脑的投射通路,本文首先用HRP跨节追踪技术在大鼠研究了接受咬肌本体觉传入的Vme神经元中枢突在脑干内的终止情况。结果证明它除终止于三叉运动核及三叉上核外,主要终止于面神经核水平的三叉神经脊束核吻侧亚核背内侧部(Vodm)及邻接的外侧网状结构(LRF)。在电镜观察到Vme神经元中枢突终末在Vodm区主要和该区内的树突形成突触。并观察到这些终末接受另外来源的神经终末的突触前控制。
In order to further clarify the route of projection of the trigeminal nerve from the trigeminal nerve to the thalamus, we first investigated the termination of brainstem of Vme neurons in the recipient of the masseter by using the HRP cross-section tracking technique in rats Happening. The results show that it terminates in the Vodm and adjacent lateral reticular structures (LRFs) of the nucleus subfractor of the trigeminal nucleus of the trigeminal nucleus except the trigeminal nucleus and the trigeminal nucleus. Electron microscopy showed that the terminals of Vme neurons were mainly synapse in the Vodm region and dendrites in this region. And observed that these terminals accept presynaptic control of neural terminals of another origin.