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Wednesday, December 11, 2013
The digestive system is made up of the digestive tract, which is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The digestive tract also includes other organs that help the body break down and absorb food.
Organs that make up the digestive tract are:
Inside these hollow organs is a lining called the mucosa. In the mouth, stomach, and small intestine, the mucosa contains tiny glands that produce juices to help digest food. The digestive tract also contains a layer of smooth muscle that helps break down food and move it along the tract. (More)
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