Discover how the human digestive system, one of the most important systems in the human body, works. Learn what each part does, and then see how...

Learn about the process of digestion and understand the importance of enzymes in the digestive system. View examples of enzymes that help with the digestion process.

Chyme is a semifluid mixture made of partially digested food and digestive juices. As chyme moves through the digestive system, nutrients and water are extracted to provide the body with sustenance.

What are Villi? The small intestine is the longest part of the digestive system. This almost twenty-foot-long structure is divided into three sections called the duodenum, ileum, and jejunum.

Learn how the digestive system works in this educational video lesson for kids. Explore how food travels through the body, and test your knowledge with a quiz.

The lower gastrointestinal tract or lower GI is a part of the digestive system composed of most of the small intestine, the large intestine, and the anus. These organs aid in chemical digestion ...

The gastrointestinal tract (GI tract) is the digestive system of the body. It takes food that is consumed by an organism and processes it into usable molecules. Then it packages the waste for ...

The digestive system of nematodes is a complete, one-way system that starts at the mouth, travels down through a tubular gut and exits from the anus.

Learn the definition of gastrointestinal system and gastrointestinal hormones. Discover how gastrin and other digestive hormones are secreted and function.

The Digestive System Before nutrients can be transported around your body, the food you eat needs to be broken down into a more transportable size.