Thorax · NEET PG Preparation Anatomy
A 45-year-old male undergoes a right posterolateral thoracotomy. During the procedure, the surgeon identifies a nerve running anterior to the root of…
Practice question from Thorax (NEET PG Preparation Anatomy), with the correct answer and a step-by-step solution.
medium · MCQ · Q-ADB47A
A 45-year-old male undergoes a right posterolateral thoracotomy. During the procedure, the surgeon identifies a nerve running anterior to the root of the lung, deep to the pericardium, accompanied by the pericardiacophrenic vessels. Which of the following is the most likely identity of this nerve?
- A.Vagus nerve
- B.Phrenic nerveCorrect answer
- C.Sympathetic trunk
- D.Recurrent laryngeal nerve
Solution
The phrenic nerve descends through the thorax, passing anterior to the root of the lung and running between the mediastinal pleura and the pericardium, accompanied by the pericardiacophrenic artery and vein. The vagus nerve, by contrast, passes posterior to the root of the lung.
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