Aragona F, Artibani W, de Caro R, Pizzarella M, Passerini G
Department of Anatomy, University of Padua, Italy.
Int Urol Nephrol. 1988;20(3):239-50. doi: 10.1007/BF02549510.
The ultrastructure of the normal rat ureter has been studied in order to correlate the morphological findings with the function of the organ. Electron microscopy demonstrates that the ureteral musculature behaves as a functional syncytium which permits the spread of electrical excitation from cell to cell. A scanty number of nerve endings without evidence of autonomic ganglia was found throughout the ureteral layers. These morphological data support the hypothesis that ureteral peristalsis is an essentially myogenic phenomenon, the influence of the autonomic nerve supply being limited to modulating peristalsis and influencing ureteral tonus.
为了将形态学发现与器官功能相关联，对正常大鼠输尿管的超微结构进行了研究。电子显微镜显示，输尿管肌肉组织表现为功能性合体细胞，允许电兴奋在细胞间传播。在输尿管各层中发现了少量无自主神经节证据的神经末梢。这些形态学数据支持了以下假设：输尿管蠕动本质上是一种肌源性现象，自主神经供应的影响仅限于调节蠕动和影响输尿管张力。
