| Origin | Internal surfaces of 7th to 12th costal cartilages, thoracolumbar fascia, iliac crest and lateral 1/3 of inguinal ligament |
|---|---|
| Insertion | Linea alba, pubic crest |
| Innervation | Ventral rami of inferior 6 thoracic and 1st lumbar nerves |
| Action | Compresses and supports abdominal viscera |
Last Modified 1998 Aug 12 by FSC