It then proceeds to the small intestine ( duodenum and ileum ) where most digestion occurs .
The food then moves through the oesophagus into the stomach where digestive enzymes are added and it is churned up .
food then proceeds to the small intestine ( duodenum and ileum ) where most digestion occurs .
The food then moves through the oesophagus into the stomach where digestive enzymes are added and it is churned up .