The organ between the esophagus and the small intestine. The stomach is where digestion of protein begins. An open sore in the lining of the stomach. Also called gastric ulcer. The solid wastes that pass through the rectum as bowel movements.
Stools are undigested foods, bacteria, mucus, and dead cells.
Also called feces. An upper GI ulcer from physical injury such as surgery, major burns, or critical head injury. The abnormal narrowing of a body opening. Also called stenosis. See also Esophageal Stricture and Pyloric Stenosis.