Gastro-gastric excitatory motor reflex in the dog.

Lowering of the intra-antral pressure caused enhanced movements of the corporal pouch in the dog stomach. Stimulation of the central end of vagal fibers supplying the antrum also augmented movements of both the antral pouch and corporal pouch. The findings suggest the existence of a gastro-gastric excitatory reflex which plays a role in gastric emptying.