Which Group is Incorrect

Question

Which group is incorrect?
A) Cranial nerves: olfactory, optic, oculomotor
B) Spinal nerves: phrenic, axillary, sciatic, vagus
C) Plexuses: cervical, brachial, lumbosacral
D) States of paralysis: paraplegia, quadriplegia, hemiplegia

Accepted Answer

The spinal nerves listed are phrenic, axillary, sciatic, and vagus. The phrenic nerve is actually technically a mixed nerve that arises from the C3-C5 nerve roots of the cervical plexus, not from the spinal nerves. The axillary nerve arises from the brachial plexus, not a spinal nerve. The sciatic nerve arises from the lumbosacral plexus, not a spinal nerve. The vagus nerve is actually a cranial nerve, not a spinal nerve.