The brachial plexus gives rise to all of the following nerves except the
A) radial.
B) median.
C) ulnar.
D) musculocutaneous.
E) phrenic.

Question

Quizplus · Accepted Answer

The phrenic nerve is not derived from the brachial plexus. It originates from cervical spinal nerves C3-C5 and innervates the diaphragm, which is important for breathing. The rest of the nerves listed (radial, median, ulnar, and musculocutaneous) are all derived from the brachial plexus, which is a network of nerves that originates from spinal nerves C5-T1 and supplies the upper limb.

The Brachial Plexus Gives Rise to All of the Following