Cervical plexus

This tutorial explores the cervical plexus, a network of nerves formed by the ventral rami of the first four cervical spinal nerves. It details the muscular and cutaneous branches, focusing on the phrenic nerve and ansa cervicalis. The tutorial also discusses the hypoglossal and accessory nerves' association with the cervical plexus. It concludes with the clinical significance of the phrenic nerve, highlighting conditions that may affect it.

What is the significance of the ansa cervicalis in the cervical plexus?

Describe the sensory innervation provided by the lesser occipital nerve.

How can one remember the names of the sensory branches of the cervical plexus?

What clinical conditions can affect the phrenic nerve?