The Cervical Plexus

Multiple Choice

The cervical plexus

A) consists of the ventral rami of spinal nerves C1-C4, and some fibers from C5.
B) gives rise to motor branches that innervate the muscles of the neck.
C) gives rise to the phrenic nerve, which provides the sole motor supply to the diaphragm.
D) gives rise to branches that supply the skin of the neck, shoulder, and upper chest region.
E) All of the answers are correct.