This story is part of a series exploring human anatomy and physiology complexities. Each story in this collection showcases discoveries reshaping our understanding of the body's inner workings, ...

The intestines work by absorbing nutrients and vitamins. They are part of the gastrointestinal (GI) tract. Together, the small and large intestines run from the end of the stomach to the anus. In this ...

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Digestive enzymes are found in the digestive system, including the mouth, stomach, and small intestine. They help you break down food and absorb nutrients. Sometimes, the body cannot make enough ...

The colon is part of the digestive system. It helps the body absorb water and nutrients from food before excreting the waste. It is made up of muscle and located just below the stomach. People ...

Chemical digestion is one of the six main functions of your digestive system. This system consists of your digestive or gastrointestinal tract and accessory organs. During chemical digestion, your ...

Your gastrointestinal (G.I.) system, the key player in your overall digestive health, is one of the most important systems in your body. It consists of the mouth, esophagus, stomach, small intestine, ...

Your pancreas sits behind your stomach. It produces enzymes and hormones that help you digest food and that regulate blood sugar. (Science Photo Library/Getty Images) Your pancreas is shaped like an ...