Answer:
- stomach
- pancreas
- esophagus
- pharynx
Step-by-step explanation:
The upper gastrointestinal tract is considered to run from the mouth to the duodenum. The lower gastrointestinal tract runs from the lower small intestines, large intestines to the anus. Organs like the liver and pancreas are also considered part of the upper gastrointestinal tract because they are related in the digestion of food in the upper GI through production of digestive enzymes.