Anatom3DCervical plexus
Plexus cervicalis · Krční pleteň
Nervous system
Looks like
A network of nerves from the upper four neck roots, lying deep under the sternocleidomastoid.
What it does
Supplies skin of the neck and ear, neck muscles and the diaphragm via the phrenic nerve.
Keeping it well
Can be numbed for neck surgery; injury is rare and shows as numbness around the ear or neck.