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Choose the incorrect statement regarding nerve supply in the alimentary canal

 

Option: 1

The extrinsic innervation is supplied by the autonomic nervous system


Option: 2

The intrinsic innervation supplied to the alimentary canal by the enteric nervous system


Option: 3

The sympathetic activation decreases the GI secretion and motility


Option: 4

The parasympathetic activation (the rest-and-digest response) suppresses neurons of the enteric nervous system and increases GI secretion

 

 


Answers (1)

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The sympathetic activation (the fight-or-flight response) restricts the activity of enteric neurons, thereby decreasing GI secretion and motility. The parasympathetic activation (the rest-and-digest response) increases GI secretion and motility by stimulating neurons of the enteric nervous system. Hence, the correct answer is option d.

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