McMillan Pedersen

Acid from the stomach supports digestion, but when it backs up into the esophagus, it causes irritation. When you swallow, your lower esophageal sphincter (a ring of muscle at the base of one's throat) closes to avoid gastric acid and food from entering the esophagus. The acidity of the stomach

The gastric acid plays an essential role in the process of food digestion; however, its regurgitation into the esophagus results in irritation. The lower esophageal sphincter, a circular muscle located at the base of the throat, contracts in order to prevent the reflux of gastric acid and food into the