To understand why indigestion and heartburn cause the symptoms and discomfort they do, it is important to know a little about the upper gastrointestinal (GI) tract, which is comprised of the mouth, oesophagus, the stomach and the duodenum.

This site is intended for Healthcare Professionals only
Start learning!
 (
The upper gastrointestinal tract
Don’t worry, you can come back and finish the assessment in your own time.