The stomach (Greek: gaster, lat. ventriculus) lies between the oesophagus and the (small) intestine and is a muscular hollow organ in which food is mechanically reduced (gastric folds) and chemically pre-digested (gastric acid – HCl, enzymes). The inside has a cylindrical mucous membrane lining. Food components below a certain size are transported on through the pylorus and into the small intestine for nutrient absorption.

Gastritis/ Gastric ulcer

Stomach cancer