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用镀银染色铺片法及常规电镜技术，对人小肠肌间神经丛进行了形态学观察。结果表明：人小肠肌间神经丛由神经纤维束和神经节组成，呈与肠管共同始终的连续网格状结构。神经节细胞形态呈高度的异质性，体积变异大，自１７９．８～３６８１７．６μｍ３，神经细胞平均密度为１３７５个／ｃｍ２。电镜下可见神经节为神经细胞与神经胶质细胞组成的实体，神经细胞胞体包埋于神经细胞与神经胶质细胞突起组成的神经纤维网中，内含多种不同形态突触小泡的神经终末支，以轴－树及轴－体突触较为多见。神经节外无结缔组织被膜，仅有基板及成纤维细胞的突起。肠平滑肌收缩可改变神经节表面的外形，在神经细胞内常见散在或成团的脂褐素。
The morphology of human intestinal myenteric plexus was observed with silver-plated staining and conventional electron microscopy. The results showed that the myenteric plexus of the human small intestine consisted of nerve fiber bundles and ganglion and presented a continuous, grid-like structure with the intestine. Ganglion cells showed a high degree of heterogeneity in morphology with a large volume variation, ranging from 179.8 to 36817.6 μm3 with an average nerve cell density of 1375 cells / cm2. Electron microscope shows that the ganglion is an entity composed of nerve cells and glial cells. The soma of neurons is embedded in the nerve fiber network composed of neurons and glial processes, which contain many different types of synaptic vesicles Terminal branch to shaft - tree and axis - synapses more common. Ganglion without connective tissue envelope, only the substrate and fibroblasts protrusions. Intestinal smooth muscle contraction can change the shape of the surface of the ganglion, common in nerve cells scattered or lumps of lipofuscin.