Sphincter Pictures, Images and Stock Photos

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Heartburn and Gastroesophageal Reflux Disease (GERD). The stomach releases strong acids to help break down the food. If the esophageal sphincter opens too often or does not close tight enough, stomach acid can reflux or seep back into the esophagus, damaging it and causing the burning (heartburn).

Gastroesophageal reflux disease (GERD), caused when the lower esophageal sphincter (LES) does not close properly, and stomach contents leak back (reflux) into the esophagus. When refluxed stomach acid touches the lining of the esophagus, it causes a burning sensation (heartburn). GERD may lead to histopathological changes in the esophagus.

sphincters. Anatomy of the lower rectum and anus showing the muscle sphincters. The internal anal sphincter is made of smooth muscle. The external anal sphincter is made up of skeletal muscle

eptic ulcer disease, also known as a peptic ulcer or stomach ulcer, is a break in the lining of the stomach, first part of the small intestine, or occasionally the lower esophagus.An ulcer in the stomach is known as a gastric ulcer while that in the first part of the intestines is known as a duodenal ulcer. Vector graphic.

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