Aortic Arches
Embryology
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Cardiorespiratory System
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Heart
Q. During thoracic surgery, a surgeon accidentally damages the left recurrent laryngeal nerve near the ligamentum arteriosum. Which embryologic structure explains the course of this nerve?
a
Left sixth aortic arch
b
Right third aortic arch
c
First aortic arch
d
Right dorsal aorta
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