experiments were done in order to test the hypothesis that neurons in the bowel send axonal projections to the pancreas and can modify pancreatic activity . pancreatic injections of the retrograde tracer , fluoro-gold , labeled neurons in the myenteric plexus of the antrum of the stomach and in the first 6 cm of the duodenum . this labeling was not due to the diffusion of fluoro-gold from the pancreas , because the injections did not label longitudinal muscle cells overlying labeled ganglia in the bowel or neurons in the phrenic nerve nucleus or nucleus ambiguous ;
C0004461
axonal
C0027882
neurons