A 58-year-old man undergoes carotid endarterectomy for severe left carotid stenosis. Postoperatively, he is hemodynamically stable (BP 138/82, HR 78, RR 16, SpO2 98% on room air). On examination, his tongue deviates to the right when protruded. Shoulder shrug and sternocleidomastoid strength are intact bilaterally. CT angiography confirms successful plaque removal without arterial dissection. Which of the following nerves was most likely injured during the procedure?

  1. A)Glossopharyngeal nerve
  2. B)Lingual nerve
  3. C)Hypoglossal nerveGABARITO
  4. D)Vagus nerve
  5. E)Accessory nerve

Explicação

The hypoglossal nerve innervates intrinsic and extrinsic tongue muscles except palatoglossus. A lower motor neuron lesion causes the tongue to deviate toward the side of injury because of unopposed action of the contralateral genioglossus. Ver explicação completa e trilha adaptativa →

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