Sato A, Sato Y, Schmidt R F
J Auton Nerv Syst. 1980 Mar;1(3):229-41. doi: 10.1016/0165-1838(80)90019-3.
Methods used and results obtained in a study of reflex responses of the bladder were as follows. Intravesical pressure was recorded continuously by the balloon method in chloralose--urethane anaesthetized cats. Various afferent fibres of hind limb cutaneous and muscle nerves were stimulated electrically, and the resulting changes in vesical functions were examined. It was found that: (1) when the bladder was nearly empty and quiescent, repetitive stimulation of group III (thin myelinated) and IV (non-myelinated) cutaneous or muscle afferent fibres of hind limb nerves caused a reflex increase in the vesical tonus. This somato-vesical excitatory reflex was propriospinal with its efferent are mainly in the pelvic nerves; (2) when there were spontaneous, large (amplitude above 300--400 mm H2O), rhythmic (about 1.0--2.5/min) micturition contractions of the expanded bladder, these contractions were inhibited by repetitive stimulation of the group III and IV cutaneous or muscle afferent fibres of hind limb nerves. The inhibition was sometimes followed by subsequent larger micturition contractions. The efferent arc for this somato-vesical inhibitory reflex was also in the pelvic nerves. Supraspinal structures were essential for producing the micturition contractions; (3) stimulation of group III and IV afferent fibres together was more effective than stimulation of the group III afferent fibres alone in activating either the excitatory or inhibitory somato-vesical reflex pathways.
一项关于膀胱反射反应的研究中所使用的方法及获得的结果如下。在水合氯醛 - 乌拉坦麻醉的猫身上，通过气囊法连续记录膀胱内压。对后肢皮肤和肌肉神经的各种传入纤维进行电刺激，并检查由此引起的膀胱功能变化。结果发现：（1）当膀胱几乎排空且静止时，重复刺激后肢神经的Ⅲ组（薄髓鞘）和Ⅳ组（无髓鞘）皮肤或肌肉传入纤维会导致膀胱张力反射性增加。这种躯体 - 膀胱兴奋性反射是脊髓 propriospinal 的，其传出神经主要在盆神经中；（2）当扩张的膀胱出现自发性、大幅度（幅度高于300 - 400毫米水柱）、有节律（约1.0 - 2.5次/分钟）的排尿收缩时，后肢神经的Ⅲ组和Ⅳ组皮肤或肌肉传入纤维的重复刺激会抑制这些收缩。这种抑制有时会随后出现更大幅度的排尿收缩。这种躯体 - 膀胱抑制性反射的传出神经也在盆神经中。脊髓上结构对于产生排尿收缩至关重要；（3）共同刺激Ⅲ组和Ⅳ组传入纤维比单独刺激Ⅲ组传入纤维在激活兴奋性或抑制性躯体 - 膀胱反射通路方面更有效。
