Sternohyoid

Written by Max Bidewell

Last updated January 20, 2023 • 6 Revisions

The sternohyoid is an infrahyoid muscle of the neck. It is located in the superficial plane of the neck, along with the omohyoid muscle.

  • Attachments: Originates from the sternum and sternoclavicular joint. Ascends to insert onto the hyoid bone.
  • Actions: Depresses the hyoid bone.
  • Innervation: Anterior rami of C1-C3, carried by a branch of the ansa cervicalis.
  • Blood Supply: Superior thyroid artery (branch of the external carotid artery) and inferior thyroid artery (branch of the thyrocervical trunk).

Fig 1- Anterior view of the infrahyoid muscles of the neck.

Fig 2
Lateral view of the infrahyoid muscles of the neck.

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