A 25-Year-Old Man Is Evaluated in the Emergency Department After

A 25-year-old man is evaluated in the emergency department after a street fight. The patient's respiratory rate is 32/min, blood pressure is 80/58 mm Hg, and heart rate is 120/min. Physical examination shows a penetrating left-sided stab wound along the upper surface of the clavicle between the lateral border of the sternum and the midclavicular line. Which of the following structures was most likely injured?

A) Accessory nerve
B) Ansa cervicalis
C) Carotid body
D) Inferior thyroid artery
E) Lung pleura

Correct Answer:

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