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. Digestive/Gastrointestinal CancersGastrointestinal ComplicationsComplicaciones gastrointestinales |