The sternohyoid muscle is a thin, narrow muscle attaching the hyoid bone to the sternum, one of the paired strap muscles of the infrahyoid muscles serving to depress the hyoid bone. It is innervated by the ansa cervicalis.
Muscles of neck. Sternohyoideus labeled at middle, just to the right of thyroid cartilage.
Muscles of the neck. Lateral view. Sternohyoid muscle labeled
|Origin||manubrium of sternum|
|Artery||superior thyroid artery|
|Nerve||C1-C3 by a branch of ansa cervicalis|
|Anatomical terms of muscle|
Passing upward and medially, it is inserted by short tendinous fibers into the lower border of the body of the hyoid bone.
Doubling; accessory slips (Cleidohyoideus); absence.
It sometimes presents, immediately above its origin, a transverse tendinous inscription.
- Anatomy photo:25:10-0103 at the SUNY Downstate Medical Center - "Nerves and Vessels of the Carotid triangle"