HARVINDER SINGH / SCIENCE PHOTO LIBRARY HARVINDER SINGH / SCIENCE PHOTO LIBRARY
Human stomach, conceptual illustration. The red glow could represent heartburn, a burning pain caused by stomach acids escaping (refluxing) into the oesophagus (top) and burning its lining. Running down from the stomach is the duodenum, the start of the small intestine.
Model release not required. Property release not required.