Which of the following wraps around the ligamentum arteriosum?
  1. Right recurrent laryngeal nerve
  2. Left brachiocephalic vein
  3. Right subclavian vein
  4. The left recurrent laryngeal nerve
Explanation
Answer: D - The Laryngeal nerve, a branch of the vagus nerve (CN X), wraps around the arch of the aorta, which is also known as the ligamentum arteriosum, as it ascends in the mediastinum.
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