Answer :
The alimentary canal is innervated by the and divisions of the autonomic nervous system. This statement is False.
The GI tract is innervated by enteric nervous system (ENS) neurons as well as axons of extrinsic sympathetic, parasympathetic, and visceral afferent neurons.
Food that has been swallowed stimulates the pharynx and upper esophagus, eliciting afferent signals that are integrated in the brainstem and then provide efferent signals to enteric neurons in the stomach, causing acid secretion and increased gastric volume in preparation for the arrival of the food.
Intestinal inflammation causes pain and altered motility, at least in part due to effects on the enteric nervous system. While these changes can be reversed with healing, long-term damage can lead to inflammatory bowel disease (IBD) and post-enteritis irritable bowel syndrome (IBS).
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