Digestive system: The organs that are responsible for getting food into and out of the body and for making use of it. These organs include the salivary glands, the mouth, esophagus, stomach, small intestine, liver, gallbladder, pancreas, colon, rectum, and anus.
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.
Provides general information about the organs of the digestive system, the digestive process, and the absorption of nutrients. Includes a list of additional readings.
n. The alimentary canal and digestive glands regarded as an integrated system responsible for the ingestion, digestion, and absorption of food.
The digestive system breaks down the food you eat. Learn how in this article for kids.
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The digestive process starts even before the first bite of food. Find out more about the digestive system and how our bodies break down and absorb the food we eat.