Discrepancy between the renal pelvic fluctuations and the pacemaker discharges at the pelvi-calyceal border.
نویسندگان
چکیده
Experiments were performed in vitro to explore the influence of isoproterenol on the canine pelvi-ureteral system. The rhythmic changes of intrapelvic pressure became no longer manifest and simultaneously recorded electromyograms revealed disappearance of peristalsis at sites distal to the upper region of renal pelvis following application of isoproterenol, while the pacemaker at the pelvi-calyceal border continued to discharge with an enhanced pace. This result has demonstrated that the renal pelvic pressure recorded during treatment with isoproterenol did not reflect the pacemaker activity of the renal pelvis.
منابع مشابه
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ICC are found in both the upper and lower urinary tract. They are not found in the ureter itself but are confined to the lamina propria of the renal pelvis and pelvi-calyceal junction. They do not appear to have a primary pacemaker role (this is ascribed to atypical smooth muscle cells in the same location) but rather conduct and amplify the pacemaker signals generated by the atypical smooth mu...
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ورودعنوان ژورنال:
- The Tohoku journal of experimental medicine
دوره 139 3 شماره
صفحات -
تاریخ انتشار 1983