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Accessory Organs of the Digestive System pancreas – liver - gallbladder Chyme (/kaɪm/) from Greek χυμός khymos, "juice") semifluid mass of partly digested food expelled by the stomach into the duodenum. • Chyme moves from stomach to duodenum, a little at a time, through the pyloric sphincter • Duodenum then secretes the hormone secretin • Secretin neutralizes the acid in the chyme Pancreas • Secretes fluid that contains digestive enzymes into the duodenum • Bicarbonate ions produced when duodenum secretes secretin (neutralizes acid in chyme) Liver • Production of bile • Filters blood coming from the digestive tract Gallbladder • Stores and releases bile • Bile salts help to break down fats into smaller fat droplets (process is called emulsification) Digestion of: Carbohydrates: starts in mouth, ends in small intestine Proteins: starts in stomach, ends in small intestine Fats: small intestine