A scanning electron microscope study on the autonomic groundplexus in the lamina propria mucosae of the guinea-pig small intestine.

Y Endo, S Kobayashi
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引用次数: 15

Abstract

The occurrence and fine structure of the autonomic groundplexus in the lamina propria mucosae of the guinea-pig small intestine were studied by scanning electron microscopy after removing connective tissue elements by maceration in hydrochloric acid. Transmission electron microscopy was also performed to investigate the fine structure of the neuronal and glial elements in the autonomic groundplexus. Nerve fasciculi consisting of neuronal processes and enteroglial cell sheaths formed a three-dimensional network intercalated between blood and lymph vessels. Processes of enteric neurons ran within the enteroglial cell framework. No blind ends of nerve fasciculi were found. Terminal varicosities of neuronal processes were frequently exposed on the surface of the nerve fasciculi. The locations of these naked varicosities may represent the sites of interaction between the enteric neurons and their target tissues.

豚鼠小肠固有层粘膜自主神经丛的扫描电镜研究。
用扫描电镜观察了盐酸浸泡去除结缔组织成分后豚鼠小肠固有层粘膜自主底丛的发生和精细结构。透射电镜观察了自主神经丛神经元和胶质细胞的精细结构。神经束由神经突和肠胶质细胞鞘组成,在血管和淋巴管之间形成三维网络。肠神经元的过程在肠小胶质细胞框架内运行。未见神经束盲端。神经束表面常出现神经突末端曲张。这些裸露的静脉曲张的位置可能代表了肠神经元与其靶组织之间相互作用的位置。
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