Morita T, Ishizuka G, Suzuki T, Kondo S, Tsuchida S
Tohoku J Exp Med. 1983 Oct;141(2):245-6. doi: 10.1620/tjem.141.245.
Conduction velocity of excitation in various regions of the canine pelviureter was studied through the simultaneous recordings of electromyograms at four sites of the canine pelvicalyceal preparation. The pelviureteral system was maintained in the condition which was similar to in vivo situation by infusion of oxygenated Krebs-Ringer solution into the renal pelvis at the average flow rate of living dogs. The conduction velocity was slowest in the proximal region of the pelvis where the pacemaker was located, i.e., about 5.8 mm/sec on an average. The velocity gradually increased in the distal region of the pelvis and the ureter. It was suggested that the conduction velocity of excitation was significantly different in the proximal area of the pelvis, the distal area of the pelvis and the ureter.
通过在犬肾盂制备的四个部位同时记录肌电图，研究了犬肾盂输尿管不同区域的兴奋传导速度。通过以活犬的平均流速向肾盂内注入含氧的克雷布斯 - 林格溶液，使肾盂输尿管系统维持在类似于体内的状态。兴奋传导速度在起搏器所在的肾盂近端区域最慢，平均约为5.8毫米/秒。在肾盂远端区域和输尿管中，速度逐渐增加。提示肾盂近端区域、肾盂远端区域和输尿管的兴奋传导速度存在显著差异。
