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The external oblique muscle is the most superficial of the flat muscles of the abdomen. It arises from the anterior angles of ribs 5 to 12. The superior slips of muscle merge and fuse with the slips of serratus anterior. The inferior slips interdigitate with latissimus dorsi.
External oblique inserts into the:
There is a triangular deficiency in the aponeurosis of external oblique immediately superolateral to the pubic tubercle. This is the superficial inguinal ring.
The action of external oblique is dependent on the action of other muscles:
External oblique is innervated by:
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