正常的小肠回肠运输的速度明显缓慢,回盲瓣对小肠的运输及对全结肠的缓慢运输的影响都十分重要。即使在禁食时,胃和小肠也有间竭性蠕动并有胆汁和胰液的分泌。脂肪能抑制胃的排空,进食量越大,排空的时间越长。小肠每日接纳消化道腺体的分泌液5～6升——大约唾液与胆汁各1升,胃液与胰液1.5～3升,但仅有1升为小肠所吸收。液 Normal intestinal ileal transport was significantly slower, ileocecal delivery of the small intestine and the slow transit of the entire colon are very important. Even in fasting, the stomach and small intestine also have exhaustive peristalsis and the secretion of bile and pancreatic juice. Fat can inhibit gastric emptying, the greater the amount of food intake, the longer the time to empty. The small intestine receives daily 5 to 6 liters of secretions from the digestive tract glands - about 1 liter each of saliva and bile, 1.5 to 3 liters of gastric juice and pancreatic juice, but only 1 liter is absorbed by the small intestine. liquid