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Human gastrointestinal tract

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The gastrointestinal system is the body system that eats and digests food; it is also called a digestive system. By breaking down food into simple chemicals that can be absorbed by other parts of the body so the chemicals can be used for energy and building the body, it also gets rid of waste after digestion. The gastrointestinal system starts at the lips and ends at the anus. Animals like worms, insects, mammals, birds, fish, and people all have digestive systems.

The gastrointestinal tract is the gut and other organs that help us digest food.

Parts of the gut

The gut is the round tubes that food goes through and is digested. The parts of the human, and some other animals, gut system are:

Other organs that are part of the gastrointestinal system but are not part of the gut are:

Food does not go through these organs. But they help the gut digest the food. They also have other work. For example the pancreas, thyroid, liver, and parathyroids are also endocrine glands that make hormones like insulin.

There are many diseases that affect the gastrointestinal system. Doctors who study the gastrointestinal tract are called gastroenterologists.

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