Question:

Gag reflex will be absent in which nerve injury?

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The gag reflex is absent in injuries involving the glossopharyngeal (IX) and vagus (X) nerves, as both are integral to the sensation and motor function of the reflex.
Updated On: Mar 24, 2025
  • 5 and 10
  • 9 and 10
  • 10 and 12
  • 7 and 9
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The Correct Option is B

Solution and Explanation

The gag reflex is mediated by cranial nerves 9 (glossopharyngeal) and 10 (vagus). Injury to these nerves will result in the absence of the gag reflex. The glossopharyngeal nerve carries sensory information, while the vagus nerve controls the motor response.
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