A 28-year-old male arborist is brought to the emergency department by his coworker. The patient lost his balance while atop a tree and slipped, barely avoiding a fall by grasping a limb with his right arm. He is unable to flex his wrist or move several of his fingers. There is numbness of the medial arm, forearm, and hand. Which of the following injuries is most likely?
A. Axillary nerve
B. Inferior trunk of the brachial plexus
C. Long thoracic nerve
D. Superior trunk of the brachial plexus
E. Thoracodorsal nerve
A. Axillary nerve
B. Inferior trunk of the brachial plexus
C. Long thoracic nerve
D. Superior trunk of the brachial plexus
E. Thoracodorsal nerve