Indicate whether each statement is true or false:
1. The intestinal mucosa produces most of the secretions thatenter the small intestine, but the secretions of the spleen and thepancreas also enter the small intestine and play essential roles indigestion.   True  False
2. The mucus produced by the intestinal and duodenal glands and thegoblet cells protects the wall of the intestine from the effects ofthe acidic chyme and from digestiveenzymes.   True  False
3. Small molecules, which are breakdown products of digestion, areabsorbed through the microvilli and enter the circulatory orlymphatic system.   True  False
4. Mixing, propulsion, and mass peristalsis are the primarymechanical functions of the small intestine. True False
