Ipsilateral deviation of tongue in 12th nerve palsy is due to –
Correct Answer: Unaltered action of contralateral genioglossus
Description: Injury to hypoglossal (12th) nerve paralyzes ipsilateral half of the tongue. When the tongue is protruded, its tip deviates towards the paralyzed side because of unopposed action of genioglossus muscle on the normal side of the tongue.
Category:
Anatomy
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