The mucosa of the posterior third of the tongue is supplied by______________?
Correct answer: D. Glossopharyngeal nerve
- A. Facial nerve
- B. Trigeminal nerve
- C. Mandibular nerve
- D. Glossopharyngeal nerve
Explanation
The posterior one-third of the tongue receives general sensory and taste fibers from the glossopharyngeal nerve. The trigeminal nerve supplies general sensation mainly to the anterior two-thirds, while the facial nerve carries taste from that region.
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