Digestive system

The organs that are responsible for getting food into and out of the body and for making use of food to keep the body healthy. These organs include the salivary glands, the mouth, esophagus, stomach, liver, gallbladder, pancreas, small intestine, colon, and rectum. The digestive system has a series of hollow organs joined in a long, twisting tube from the mouth to the anus. Inside this tube 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. Two solid organs, the liver and the pancreas (both of which are embryologically derived from the digestive tract), produce digestive juices that reach the intestine through small tubes known as ducts. In addition, parts of other organ systems (for instance, nerves and blood) play a major role in the digestive system.

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digestive system n the bodily system concerned with the ingestion, digestion, and absorption of food: alimentary system

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systema digestorium.

Medical dictionary. 2011.

Look at other dictionaries:

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