Changes in the volume of evacuated bile associated with emesis in dogs.

Changes in the volume of evacuated bile as well as the extrahepatic biliary motilities associated with emesis were studied in decerebrated dogs. The motilities of both the gallbladder and sphincter of Oddi were enhanced with retching. The mean volume of evacuated bile significantly decreased during retching. These results suggested that the extrahepatic biliary motilities with emesis are not related to bile evacuation.