采用HRP顺、逆行标记法及神经溃变法,用光、电镜同时观察大白鼠孤束核及其腹侧网状结构区细胞向面神经核的纤维投射。结果表明:孤束核及其腹侧网状结构均向面神经核的中间亚核有定位的纤维投射,前者形成较细终末,后者形成较粗终末。同时观察这些纤维终末与面神经核细胞间的突触关系。井对这些投射的机能进行了讨论。 Using HRP cis / retrograde labeling method and neurodegeneration method, light and electron microscopy were used to observe the fiber projection of the nucleus tractus solitarius nucleus and ventral reticular region in the facial nerve nucleus. The results show that the nucleus of solitary nucleus and its ventral reticular structure all project with the localized fibers toward the middle subnucleus of the facial nucleus. The former forms a thinner terminal while the latter forms a thicker terminal. At the same time observe the synaptic relationship between these terminal fibers and facial nerve nuclei. Well, the capabilities of these projections are discussed.