CCK and VIP mediate the release of this substance through the ampulla of Vater.
CCK and VIP mediate the release of this substance through the ampulla of Vater. Along with cholic acid, taurocholic acid, and deoxycholic acid, this substance also contains a byproduct of hemoglobin breakdown. Lack of this substance in the body can lead to deficiencies in fat-soluble vitamins. Released via a namesake duct into the duodenum, it is responsible for the brown color of feces. It is a bitter, green fluid whose main function is to emulsify fats for digestion. For 10 points, name this substance produced by the liver and stored in the gallbladder.
CCK and VIP mediate the release of this substance through the ampulla of Vater.
bile [prompt on "gall" until "gallbladder" is read] 