Questa immagine potrebbe avere delle imperfezioni perché è storica o di reportage.
Illustration of a healthy human stomach and bile duct. Food enters the stomach from the esophagus (upper right). The stomach is a hollow sac where the food is partially broken down by enzymes and acid that are secreted by the stomach lining, combined with the churning contractions of muscles that line the stomach wall. Partly digested food is passed into the duodenum (lower left), the first region of the small intestine. Here, further digestive fluid and enzymes are added from the liver and pancreas via the common bile duct (tube on right-hand side of the duodenum). The bile ducts transport bile, produced by the liver, to the gall bladder and on to the small intestine. Bile is an alkaline liquid that aids the digestion and absorption of fat and fat-soluble vitamins in the small duodenum, where nutrients from the digested food start to be absorbed by the body.
