infusion of fat into the ileum ( a ) slowed the transit of a liquid meal through the stomach , ( b ) delayed the arrival of the liquid meal in the ileum and increased its residence in the upper small intestine , ( c ) reduced the average flow of digesta through the upper small intestine and altered the pattern of flow , ( d ) reduced the volume of the meal entering the ileum , and ( e ) reduced the degree of carbohydrate absorption in the upper small intestine .
C0020885
ileum
C0021852
small intestine