Cervical Plexus
Neuroanatomy for the ABNS Neurosurgery Residency Exam
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Peripheral Nerve Innervation
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Upper Extremity
Q. Which combination of nerve roots supplies the phrenic nerve?
a
C2, C3, C4
b
C3, C4, C5
c
C4, C5, C6
d
C5, C6, C7
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