GASTROLAB / SCIENCE PHOTO LIBRARY GASTROLAB / SCIENCE PHOTO LIBRARY
Endoscope view of the healthy ileocaecal valve (at right), the boundary between the ileum (small intestine) and the caecum (pouch connecting ileum to large intestine). The ileocaecal valve (valvula bauhini) prevents reflux from the colon (large intestine) into the ileum.
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