Do the gastric centres need an excitatory input?
D000818:Animals; D001933:Brain Stem / Q000502:physiology; D002818:Cordotomy; D007395:Interneurons / Q000502:physiology; D009475:Neurons, Afferent / Q000502:physiology; D009476:Neurons, Efferent / Q000502:physiology; D012417:Rumen / Q000294:innervation / Q000502:physiology*; D012756:Sheep; D013116:Spinal Cord / Q000502:physiology; D014630:Vagus Nerve / Q000502:physiology