The Digestive SystemEating is something we humans do every day, but many of us don't know much about what happens to our food after it has been eaten. There are millions of cells in your body that make up the tissues and organs of the digestive system, and all of them have to work together to help you digest your food. In this lesson, you will explore the different parts of the digestive system and how they work together to help keep you full and energized.