WHAT IS DIGESTION? NAME THE ORGANS INVOLVED IN DIGESTIVE SYSTEM OF HUMAN BEINGS. WHAT IS THE FUNCTION OF VILLI?
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Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream.
The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.
Intestinal villi are a unique structural and functional unit for the luminal sensing, digestion, absorption, secretion, and immune defense in the small intestine.
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