Gastrointestinal tract

(GAS-troh-in-TES-tih-nul trakt) The stomach and intestines. The gastrointestinal tract is part of the digestive system, which also includes the salivary glands, mouth, esophagus, liver, pancreas, gallbladder, and rectum.

The part of the digestive tract where the body processes food and eliminates waste. It includes the esophagus, stomach, liver, intestines, and rectum.