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Other Terms: Subcostalis, Musculus subcostalis
Latin muscle parts
Thoracic wall – lateral musculature – internal layer
The English name for this muscle is the muscle under the rib. The word subcostal comes from the Latin terms sub meaning “under” and costa meaning “rib.”
Internal surface of rib near neck
Internal surface of rib near angle two or three ribs superior to the origin
Depress the ribs.
Intercostal nerves (T1 through T11)
Superior intercostal artery from the costocervical trunk of the subclavian artery. Posterior intercostal arteries from the aorta.