digestive disorders
Regurgitation and Rumination
Introduction
Regurgitationis the spitting up of food from the esophagus or stomach without nausea or forceful contractions of the abdominal muscles.Ruminationis regurgitation with no apparent physical cause. A ring-shaped muscle (sphincter) between the stomach and esophagus normally helps prevent regurgitation. Regurgitation of sour-tasting or bitter-tasting material can result from acid coming up from the stomach. Regurgitation of tasteless fluid containing mucus or undigested food can result from a narrowing (stricture) or a Overview of Esophageal Obstructions or from an abnormal pouch in the esophagus called a 