The organs of the alimentary canal are innervated by sympathetic as well as by parasympathetic nerve fibers.

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The sympathetic nervous system regulates digestive activities such as slowing down digestion and reducing blood flow to the digestive organs during stress or physical activity. The parasympathetic nervous system, on the other hand, stimulates digestive activities such as increasing blood flow to the digestive organs and stimulating digestive secretions. Therefore, both sympathetic and parasympathetic nerve fibers innervate the organs of the alimentary canal.

The Organs of the Alimentary Canal Are Innervated by Sympathetic