“The nervous system to the digestive tract is called the enteric nervous system and is poorly understood,” says Jonathan Finegold, MD, a gastroenterologist at WESTMED Medical Group. “It is postulated, ...

The mouth starts the digestion process by breaking food down into a more easily digestible form. It does this through a combination of mechanical and chemical digestion. After people take food in ...

The digestive system needs to get food and drink into our bodies called ingestion, ... Like the mouth, the stomach does both mechanical and chemical digestion.

Each part of the digestive system has a function. ... Chemical digestion occurs when enzymes digest food into nutrients. Bile is produced by your liver and stored in the gall bladder.