GI model, upper region: esophagus  |   gastro-esophageal region  (also sometimes called the cardiac region | stomach fundus |  lesser curvature of stomach | greater curvature of stomach |  rugae (folds) of stomach |  pyloric sphincter | duodenum  |  taenia coli of transverse colon   |  spleen  |    pancreatic duct  |    liver  |