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Iliocostalis
Common Name
Transversalis costarum, Longissimus costarum
Group
Dorsal
Whole Sale Section
Loin, Rib
Origin
(1) The deep layer of the lumbo-dorsal fascia as far back as the third or fourth lumbar transverse process. (2) The anterior borders and lateral surface of the last fifteen ribs.
Insertion
The posterior borders of the ribs and the transverse processes of the last cervical vertebra.
Action
Depress and retract the ribs and so help expiration.
Innervation
Thoracic nerves
Blood Supply
Intercostal arteries
Retail Cuts
Beef Rib Roast, Beef Rib Steak, Beef Rib Steak Boneless, Beef Ribeye Lip-On,Beef Ribeye Steak Lip-On