[Role of the medulla oblongata in regulating the rhythmogenic function of the smooth musculature]

Effect of stimulation of some medulla oblongata's areas on the spontaneous rhythmogenesis in smooth muscles of the ureter as well as on heart activity and systemic arterial blood pressure revealed certain structures in medulla oblongata with activating and inhibiting influences on motor activity of the ureter in cats. In most cases the changes in the ureter rhythmic activity were synchronous with those of systemic arterial blood pressure as well as heart activity rhythm (heart pulse). Complete cutting of the spinal cord at C1-C2 level eliminated the above changes.