The Human Body

Alimentary Canal

Alimentary Canal, in anatomy, the principal part of the digestive system. It begins at the mouth and extends to the anus, having, in humans, an average length of about 9 m (about 30 ft). Passing through the head, neck, and body, it includes the mouth, pharynx, esophagus, stomach, small intestines, cecum, and large intestines.

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