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Sternalis

Other Terms: Musculus sternalis, Muscle sternal

Muscle parts

None

Latin name

Musculus sternalis

Latin muscle parts

None

Group

Thoracic wall – ventral muscle

Etymology

In English, this muscle’s name is the muscles of the breast, or chest. The word sternalis comes from the Latin word sternon meaning “breast or chest.”

Origin

Anterior surface of the inferior costal cartilages of the true ribs and the superior part of the rectus sheath.

Insertion

Anterior surface of the superior aspect of the sternum and the adjoining costal cartilages.

Action

Assists with rib movements.

Nerve supply

Intercostal nerves (T2 through T7)

Blood supply

Perforating branches from the internal thoracic artery and anterior intercostal arteries.

Latin

Musculus sternalis

French

Muscle sternal

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