垂体后叶素对家兔尿分泌的影响

垂体后叶素引起抗利尿作用表现为三个时期。文献中对无尿期的形成看法各异。本文实验证明无尿期是在注药后输尿管下部二分之一处生理状态改变所致。以苯酚随机处理输尿管,提示垂体后叶素作用时可能有神经反射途径。最后的少尿期才是垂体后叶素的抗利尿作用。 垂体后叶素具有加压和抗利尿作用。在垂体后叶素抗利尿作用中。顺序出现无尿期、多尿期和少尿期三个阶段,并认为无尿期的出现是由于输尿管的痉挛引起的。但也有报告无尿期无尿除可能是输尿管痉挛外,还可能有其它原因。虽然这一内容被广泛在普通生理学实验课中采用,但其机制未见报导,各院校做法不尽相同,解释也有差异。本实验在于进一步探讨初期无尿的原因。

THE EFFECT OF PITUITRIN ON URINARY of RABBIT

The antidiuretic action which is caused by pituitrin shows three periods In many papers, there are various views for the formation of anurea. Our experiment proves that thir effect retailed from the change of the physio logical state of the half lower part of the ureter after the injection of the pituitrin It also shows that there might exist a nervous reflex pathway when pituitrinacts under the condition of the randam treatment for ureter with phenol. In fact, the last period- oligurea isjust antidiuretic action of pituitrin.