HN 196 Lecture Notes - Lecture 4: Xerostomia, Triticale, Gluten
Document Summary
The lining of the stomach is designed to cope with hydrochloric acid, but other regions of the gi tract are not. Heartburn is caused by hydrochloric acid in the esophagus: the gastric juice seeps backward through the gastroesophageal sphincter is not cleared quickly enough from the lower esophagus and burns the lining. Gastroesophageal reflux disease (gerd) is a chronic disease for which painful, persistent heartburn is the most common symptom. Peptic ulcers are regions of the gi tract that have been eroded by hci and pepsin. The bacterium helicobacter pylori contributes to the production of both gastric and duodenal ulcers. Vomiting often accompanies a gastrointestinal infection such as the norovirus. Cyclic vomiting syndrome (cvs) is a chronic condition involving severe nausea and vomiting that can last for hours or days. Diarrhea can be caused by: food intolerances. Infection of the gi tract: stress, bowel disorders. Is more dangerous for children and the elderly.
