NCIt definition : The segment of the gastrointestinal tract where the terminal ileum transitions to
the cecum, and where the ileocecal sphincter regulates the movement of chyme from
the small intestine into the large intestine.;
Alternative definition : CDISC: The segment of the gastrointestinal tract where the terminal ileum transitions
to the cecum, and where the ileocecal sphincter regulates the movement of chyme from
the small intestine into the large intestine. (NCI);