| Origin | Outer surface of ribs 5-12 |
|---|---|
| Insertion | Linea alba, pubic tubercle, anterior half of iliac crest |
| Innervation | Intercostal 7-11, subcostal, iliohypogastric, ilioinguinal nerves |
| Action | Supports abdominal viscera, flex and rotate trunk |
Last Modified 1998 Aug 12 by FSC