The digestive system

The muscles of the small intestine mix food and digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion. The walls of the small intestine absorb water and the digested nutrients into your bloodstream.

Esophagus- The esophagus is a long, muscular tube that connects your mouth to your stomach. It's around 25cm (10in) long in adults. When you swallow food, the walls of the esophagus squeeze together (contract). This moves the food down the esophagus to the stomach.

This stomach is a muscular organ located on the left side of the upper abdomen. the stomach receives food from the esophagus.