Peristalsis in a healthy stomach
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Credit: GASTROLAB/SCIENCE PHOTO LIBRARY
Caption: Peristalsis in a healthy stomach. Endoscopic view of a circular smooth muscle in the stomach starting to contract at the beginning of a peristaltic wave. Peristalsis is the rhythmic contraction of smooth muscles that pushes digested or semi-digested food along the gut. First, circular smooth muscles contract to prevent the material from going the wrong way. Then longitudinal smooth muscles contract to push the food forward.
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Keywords: alimentary canal, anatomical, antral, circular smooth muscle, contracting, contraction, diagnosis, diagnostic, diagnostics, digestion, digestive system, endoscope, endoscopic, endoscopy, gastric, gastric antrum, gastroenterology, gastrointestinal tract, gastroscope, gastroscopic, gastroscopy, gi, gut, healthcare, healthy, human, human body, internal, lining, muscle, muscular, normal, peristalsis, peristaltic wave, person, pyloric antrum, pylorus, ring, ring-like, stomach, wall
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