Abstract
When the splanchnic nerve was stimulated once per second a stable action potential was recorded from the vagus nerve in the neck. This response was inhibited at the beginning of urinary bladder distension. Inhibition was not obtained when the lateral column of the lumbar spinal cord was cut bilaterally. Dorsal column section had almost no effect. Pelvic nerve stimulation also inhibited the vagal action potential. A more pronounced inhibitory effect was observed after dorsal column section. Stimulation of a dissected part of the dorsal column caused feeble inhibition associated with rapid adaptation, while stimulation of a dissected part of a dorsolateral column produced depression of the vagal action potential and this effect did not show adaptation.
