All the cranial nerves provide innervations for the structures in the head and neck EXCEPT one, the additionally supplies the thorax and abdomen_____________?
Correct answer: C. Vagus
- A. Glossopharyngeal
- B. Spinal accessory
- C. Vagus
- D. Hypoglossal
Explanation
The vagus nerve is the only cranial nerve in this list that extends beyond the head and neck to supply important structures in the thorax and abdomen. Its thoracic and abdominal branches include parasympathetic fibers to the heart, lungs and gastrointestinal tract.
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