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Psoas Major
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| Psoas Major | |
|---|---|
| Muscle Type | |
| Origin | Transverse processes of L1-5, bodies of T12-L5 and intervertebral discs below bodies of T12-L5 |
| Insertion | Middle surface of lesser trochanter of femur |
| Action | Stabiliser and flexor of the hip, lateral flexion of the trunk. |
| Synergists | |
| Antagonists | Gluteus maximus |
| Spinal innervation | |
| Peripheral Innervation | |
| Vasculature | lumbar arteries, iliolumbar artery, deep circumflex iliac artery, external iliac artery, femoral artery |
