There are two primary parts of the digestive system: The GI (gastrointestinal) tract, through which food passes and is broken down. The biliary tract produces juices such as bile and enzymes to ...

Food on the plate must be converted into a mashed-up, gooey liquid for the digestive system to be able to split it up into its constituent parts: proteins, carbohydrates, fats, vitamins ...

What are the parts ... human body and what they do. How do humans digest food? From chewing to pooing. Learn how our bodies get what they need from food. Bitesize 1st Level Science guide on the ...