Abdomen and Low Back Anatomy

Quadratus lumborum origin, insertion, action, innervation. Agonists and antagonists are listed for each muscle action.

Muscle anatomy of the iliopsoas muscle group includes origin, insertion, action, innervation and vascular supply. Actions include agonists and antagonists for each movement.

Anatomy of the oblique muscles includes origin, insertion, action, innervation and vascular supply. Actions include agonists and antagonists for each movement.

Muscle anatomy of the rectus abdominis muscle includes origin, insertion, action, innervation and vascular supply. Actions include agonists and antagonists for each movement.