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.

The digestive system includes your teeth, mouth, esophagus, stomach, small intestine, large intestine, and rectum. Let's go through each step in the digestive process one at a time.

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.

Learn about the lower gastrointestinal tract. Explore the anatomy of the lower GI tract and the functions of digestion, nutrient absorption, and waste elimination.

For example, the digestive system of a mollusk consists of a mouth and a stomach, while the excretory system is defined by the kidney (nephridia), anus, and excurrent siphon.

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

Get help with your Human digestive system homework. Access the answers to hundreds of Human digestive system questions that are explained in a way that's easy for you to understand. Can't find …

What is the digestive system? The digestive system is a system of many different organs working in conjunction to absorb nutrients and dispose of waste. In healthy individuals, the digestive ...