The ansa cervicalis (or ansa hypoglossi, an archaic synonym) is a component of the cervical plexus which gives muscular branches to the geniohyoid muscle of the suprahyoid group and most of the infrahyoid (strap) muscles (excluding the thyrohyoid muscle).
- superior root: derived from the anterior primary rami of C1
- inferior root: derived from the anterior primary rami of C2 and C3
- superior root
- inferior root
- branch to geniohyoid
- branches to infrahyoid (strap) muscles
History and etymology
Ansa cervicalis is Latin for handle of the neck. It comes from the loop shape of the structure, which resembles a handle.