Motor Physiology of the Stomach, the Pylorus and the Duodenum

Importance of vagal innervation in the regulatory effect of acid in the duodenum on gastric secretion of acid

“…The more consistent occurrence of this rebound in the vagally innervated pouches supports this general hypothesis. The possibility that the inhibition was due to the presence of specific inhibitory fibres in the vagus nerve, as was originally postulated by Pavlov (1910), remains open and indeed rather likely as the importance of the presence of the vagus nerves in the production of this and various other types of inhibition becomes evident (Hood & Code, 1951 It has been amply demonstrated that the presence of acid in the duodenum reduces gastric motility and slows its emptying (Thomas, 1931;Quigley, 1942). In our study, evidence of impaired gastric emptying occurred during the exrperiments involving feeding of meat.…”

The Pylorus: Its Function and Some Surgical Considerations

“…The Pylorus: Its Function and Some Surgical Considerations by H Daintree Johnson FRcs (London) I shall first describe the mechanism of gastric emptying, as I see it, based upon the work of Quigley (1942) and others, and upon my own observations and consistent, I believe, with the findings reported by Dr D A W Edwards (p 930).…”