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Sternohyoid

Other Terms: Musculus sternohyoideus, Muscle sterno-hyoïdien

Muscle parts

None

Latin name

Musculus sternohyoideus

Latin muscle parts

None

Group

Cervical wall – ventral muscle (Infrahyoid muscle)

Etymology

The English name for this muscle is the muscle of the chest and the hyoid bone. The term sterno comes from the Latin word sternon meaning “breast or chest” and the term hyoid comes from its resemblance to the Greek letter upsilon (u), which is aspirated as hy. This is combined with the suffix eidos meaning “shape or form.”

Origin

Posterior aspect of the sternal end of the clavicle and the superior and posterior surface of the manubrium of the sternum

Insertion

Inferior margin of the hyoid bone

Action

Depresses the hyoid bone.

Nerve supply

Ventral rami via the ansa cervicalis (C1, C2, and C3)

Blood supply

Thyroid ima artery, a variable branch of the brachiocephalic artery (but may also arise from the aorta, right common carotid, or subclavian arteries), infrahyoid artery from the superior thyroid, suprahyoid branch of the lingual artery, inferior thyroid artery from the thyrocervical trunk of the subclavian artery

Latin

Musculus sternohyoideus

French

Muscle sterno-hyoïdien

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