Summary
We tried to make a clear three-dimensional picture of the autonomic nerves in the wall of the human colon, using a Golgi method rarely applied to human materials. At autopsy, sigmoid colon without mucosal lesions were collected from 16 males after sudden death from apoplexy, head injury, or myocardial infarction. These materials were fixed in 10% formalin, impregnated with a modified Golgi method and embedded in celloidin. Then three-dimensional serial sections were made and observed with a light microscope. Many fine nerve fibers formed a plexus in the subserosa, muscular layer, submucosa, and mucosa. The myenteric plexus was made up of rectangular meshes of nerve fiber bundles. However, unlike myenteric plexus, no regular mesh was found in the submucosal plexus. Further, nerve fibers connecting myenteric and submucosal plexus were observed. It may be concluded from these findings that there exist nerve pathways regulating intestinal motility between myenteric and submucosal plexus.
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Narita, N., Kawakami, K., Yoshida, Y. et al. Morphological study on the motility of the human colon. Gastroenterol Jpn 18, 310–313 (1983). https://doi.org/10.1007/BF02774947
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DOI: https://doi.org/10.1007/BF02774947