Which valve or sphincter controls the passage of chyme from the small intestine into the large intestine and prevents backflow of fecal material?
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Correct answer: Ileocecal valve
The ileocecal valve is located at the junction of the ileum and the cecum. It remains constricted to slow the exit of chyme from the ileum and opens in response to the gastroileal reflex initiated by stomach distension.
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