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Quadratus Lumborum
From WikiSM
Contents
Origin
- Posterior border of Iliac Crest
Insertion
Actions
- Unilateral: lateral flexion of vertebral column
- Bilateral: depression of thoracic rib cage
Vascular Supply
- Lumbar arteries
- Lumbar branch of iliolumbar artery
Innervation
- Ventral Rami of Thoracic (T12) and Lumbar (L1-L4) Nerves