Which of the following is not true of the left phrenic nerve?

A) It traverses the superior mediastinum between left subclavian and common carotid arteries.
B) It crosses anterior to the arch of the aorta.
C) It passes posterior to the root of the left lung.
D) It supplies motor fibers to the diaphragm.
E) It pierces the diaphragm.


Ans: C

Anatomy & Physiology

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