膀胱三角部と下部尿管の運動の相関性に関する実験的研究

Abstract

An experimental study on rhythmical activity of the bladder wall and the lower ureter in various bladder volume were carried out mainly by electromyography. The result revealed that the activity of the trigone had very close relation with the activity of the lower ureter. The trigone and the lower ureter showed marked contraction at once just before voiding. These activities are thought to be a functional unit. The stimulation to the ureteral wall brought inhibitory effect to the same ureter and the accelerative effect to the other ureter. This functional specificity of the trigone and the lower ureter may have close relation to vesico-ureteral reflux as well as stenosis of the lowermost ureter.