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Other Terms: Musculus sternothyroideus, Muscle sterno-thyroïdien

Muscle parts


Latin name

Musculus sternothyroideus

Latin muscle parts



Cervical wall – ventral muscle (Infrahyoid muscle)


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,” while thyroid is from the Greek term thyreos for “shield” plus the suffix eidos meaning “shape or form.” The Greek word thyreos comes from thyra meaning door and referred to a large, oblong stone that was used as a door. The term thyreos was later used to refer to large oblong shields used by Minoan warriors. The shields covered them from shoulders to feet, with the top of the shield having a notch for the chin. It was this shield that the ancient anatomist Galen envisioned when he named the laryngeal cartilage in the 2nd Century.


Upper posterior surface of the manubrium of the sternum and the posterior side of the first costal cartilage


Oblique line on the lamina of the thyroid cartilage


Depresses the thyroid cartilage.

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


Musculus sternothyroideus


Muscle sterno-thyroïdien


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