Sternothyroid muscle

The sternothyroid muscle, or sternothyroideus, is a muscle in the neck. It is shorter and wider than the sternohyoid muscle, beneath which it is situated.

Sternothyroid muscle
Sternothyroid visible center left
Section of the neck at about the level of the sixth cervical vertebra. Showing the arrangement of the fascia coli. (Sternothyroideus labeled at right, third from top.)
InsertionThyroid cartilage
ArterySuperior thyroid artery
NerveAnsa cervicalis
ActionsDepresses thyroid cartilage
LatinMusculus sternothyroideus
Anatomical terms of muscle

It arises from the posterior surface of the sternum, below the origin of the sternohyoid, and from the edge of the cartilage of the first rib, and sometimes that of the second rib, it is inserted into the oblique line on the lamina of the thyroid cartilage.

This muscle is in close contact with its fellow at the lower part of the neck, but diverges somewhat as it ascends; it is occasionally traversed by a transverse or oblique tendinous inscription.


Doubling; absence; accessory slips to Thyreohyoideus, Inferior constrictor, or carotid sheath.

Additional images


This article incorporates text in the public domain from page 393 of the 20th edition of Gray's Anatomy (1918)

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