What is the most important branch of the cervical plexus?

Question

Quizplus · Accepted Answer

The cervical plexus provides cutaneous sensory information from the posterior scalp to the clavicle and innervates the anterior neck muscles and diaphragm.The phrenic nerve,whose cell bodies are in the cervical spinal cord (C3-C5),is the most important single branch from the cervical plexus,because the phrenic nerve is the only motor supply and the main sensory nerve for the diaphragm.

What Is the Most Important Branch of the Cervical Plexus