认为P＿3（或N＿3）是三叉神经根及三叉神经脊束核的突触前和突触后的混合电位。
It was not the rnuscle potential. We believe that P3(N3 )is mixedpresynaptic and postsynaptic potentials evoked from the trigeminal root and nucleus of trigeminalspine bundle.
在延髓，ER分布于舌下神经核、迷走神经背核、三叉神经脊束核、孤束核和网状结构；
In the medulla oblongata, ER distributed in the hypoglossal nucleus, dorsal nucleus of vagus nerve, nucleus of spinal trigeminal tract, nucleus of solitary tract and reticular formation;
在延髓，ER分布于舌下神经核、迷走神经背核、三叉神经脊束核、孤束核和网状结构；
In the medulla oblongata, ER distributed in the hypoglossal nucleus, dorsal nucleus of vagus nerve, nucleus of spinal trigeminal tract, nucleus of solitary tract and reticular formation;
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