Subcostalis muscle

Subcostalis muscle
Origininner surface of one rib
Insertioninner surface of the second or third rib below, near its angle
Nerveintercostal nerves
Actionsdepress ribs.
Latinmusculus subcostalis
Anatomical terms of muscle

The Subcostales (singular: subcostalis) (Infracostales) consist of muscular and aponeurotic fasciculi, which are usually well-developed only in the lower part of the thorax; each originates from the inner surface of one rib, and is inserted into the inner surface of the second or third rib below, near its angle.

Their fibers run in the same direction as those of the Intercostales interni.

Depresses the ribs to assist in expiration.

This page was last updated at 2024-01-19 22:30 UTC. Update now. View original page.

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