Ileocecal Valve

The ileocecal valve is a sphincter muscle situated at the junction of the small intestine (ileum) and the large intestine. It regulates the flow of chyme into the bowels.Functionally, roughly two litres of fluid enters the colon daily through the ileocecal valve.
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Ileocecal valve n. The bilabial prominence of the terminal ileum into the large intestine at the cecocolic junction in cadavers; it appears as a [more]Ileocecal valve - Community and Resources

Noun
1. valve between the ileum of the small intestine and the cecum of the large intestine; prevents material from flowing back from the large to the small intestine
(hypernym) valve