Cells in the stomach wall that make hydrochloric acid.

The study of how normal physiological processes are altered by disease.

A doctor who treats children who have digestive diseases.

An enzyme made in the stomach that breaks down proteins.

Related to the stomach and the duodenum, where pepsin is present.

A sore in the lining of the esophagus, stomach, or duodenum, usually caused by the bacterium Helicobacter pylori. An ulcer in the stomach is a gastric ulcer; an ulcer in the duodenum is a duodenal… 

Two or more amino acids joined by a peptide bond.

The passage of an instrument through the skin to allow access to the organs.

An ulcer that breaks through the wall of the stomach or the duodenum, causing stomach contents to leak into the abdominal cavity.

A hole in the wall of an organ.