The sternohyoid (Latin: musculus sternohyoideus) is a thin strap-like neck muscle extending between the sternum and the hyoid bone. Together with the omohyoid, sternothyroid and thyrohyoid muscles, it is classified as the infrahyoid muscle. The sternohyoid also belongs to the anterior neck muscles group.

Sternohyoid muscle, Sternohyoid, Infrahyoid muscles, Head and neck muscles, Neck muscles, Anterior neck muscles, Infrahyoid muscles of the neck, Sternohyoid muscle colored blue
Sternohyoid muscle by Anatomy Next
OriginManubrium of the sternum
InsertionBody of the hyoid bone
ActionDepresses the hyoid bone
Innervation  Anterior rami of the 1st to 3rd cervical spinal nerves (C1-C3) via the ansa cervicalis  
  Blood supply    Superior thyroid artery



The sternohyoid originates from the manubrium of the sternum.



The sternohyoid muscle inserts on the inferior aspect of the body of the hyoid bone.



The primary function of the sternohyoid is to depress the hyoid bone.



Nerve supply to the sternohyoid muscle is provided by the anterior rami of the 1st to 3rd cervical spinal nerves (C1 - C3) via the ansa cervicalis of the cervical plexus.


Blood supply

The sternohyoid receives arterial blood supply from the superior thyroid artery - a branch of the external carotid artery.