Corticonuclear tract 皮质核束 中央前回 precentral gyrus 动眼神经核 oculomotor nucleus E 滑车神经核 三叉神经核 trochlear nucleus trigeminal nucleus 展神经核 面神经核 abducens ucleus acial nucleus 疑核 nucleus ambiguous 副神经核 舌下神经核 ypoglossal nucleus accessory nucleus 图16-78皮质核束Coticonuclear tract 皮质核束