Omohyoid muscle | |
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Details | |
Origin | Upper border of the scapula (inferior belly), intermediate tendon (superior belly) |
Insertion | Intermediate tendon (inferior belly), hyoid bone (superior belly) |
Artery | Branches from the inferior thyroid artery (ITA) |
Nerve | Ansa cervicalis (C1-C3) |
Actions | Depresses the larynx and hyoid bone. Also carries hyoid bone backward and to the side. |
Identifiers | |
Latin | musculus omohyoideus |
TA98 | A04.2.04.003 |
TA2 | 2169 |
FMA | 13342 |
Anatomical terms of muscle |
The omohyoid muscle is a muscle in the neck. It is one of the infrahyoid muscles. It consists of two bellies separated by an intermediate tendon. Its inferior belly is attached to the scapula; its superior belly is attached to the hyoid bone. Its intermediate tendon is anchored to the clavicle and first rib by a fascial sling. The omohyoid is innervated by the ansa cervicalis of the cervical plexus. It acts to depress the hyoid bone.