Sternohyoid : Origin, Insertion, Action & Nerve Supply

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Sternohyoid: The sternohyoid muscle is located within the superficial plane.Sternohyoid MusclesOrigin: Posterior surface of manubrium and an adjoining part of the clavicle, and posterior sternoclavicular ligament.
Insertion: lower border of the hyoid bone, medial to the omohyoid m. insertion.
Actions: Depresses the hyoid bone.
Innervation: Anterior rami of C1-C3, carried by a branch of the ansa cervicalis.