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Both the colon and the attached appendix are part of the digestive system. But the appendix has other functions that are not part of that system. It is thought by some that it may be involved in the immune system.

Researchers in the United States say the appendix produces and protects good germs for the gut by "rebooting" the digestive system. The team of immunologists at Duke University Medical Center say the human digestive system contains massive amounts of bacteria most of which are good and help the digestion of food.

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7y ago

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