A further proof that the gall bladder evacuates via the cystic duct

Conclusion

The only conceivable routes by which the contents of the gall bladder may reach the common bile duct to give the results observed in this experiment are: (a) by way of the cystic duct, or (b) as Sweet suggests, by absorption from the gall bladder and re-excretion by way of the hepatic bile. It has been shown that in barbitalized dogs, the latter mechanism does not occur during evacuation of the gall bladder either by the stimulus of cholecystokinin or a fat meal. The only logical conclusion is that the gall bladder evacuates its contents by the former method: namelyvia the cystic duct.