The digestive system is very important to the body. Without it, we would not be able to live. It is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The tubes actually are about 30 feet long if they were stretched out, but seem smaller because of the way they are wrapped around. The main parts are the mouth, teeth, esophagus, stomach, small intestines, large intestines, colon, rectum, and anus. The pancreas, gallbladder, and liver are also key parts because of their functions in the digestive system.
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