Normal pyloric sphincter. Endoscopic view of a healthy pyloric sphincter beginning to close. A sphincter is a strong ring of muscle that can contract

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Normal pyloric sphincter. Endoscopic view of a healthy pyloric sphincter beginning to close. A sphincter is a strong ring of muscle that can contract to control the opening of a body passage. The pyloric sphincter controls the passage of digested food from the pylorus of the stomach to the duodenum - the first section of the small intestine.

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Size: 3173px × 2776px
Photo credit: © GASTROLAB/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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