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Musculature
Muscle Orgin/Insertions
| Muscle | Origin | Insertion | Nerve Supply | Action(s) |
|---|---|---|---|---|
| Psoas Major | Anterior borders & lower surfaces of transverse process, bodies and discs of T12 - L5 | Tip and posterior aspect of lesser trochanter | Anterior primary rami of L1,2,3 | Hip flexion |
| Iliacus | Upper & posterior 2/3 of iliac fossa, ala of sacrum, anterior sacroiliac ligament | Lesser trochanter | Femoral nerve L2,3,4 | Hip flexion |