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Psoas Minor
From WikiMSK
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| |
| Psoas Minor | |
|---|---|
| Muscle Type | |
| Origin | Lateral surface bodies of T12 and L1 vertebrae and intervening intervertebral disc |
| Insertion | Passes behind the inguinal ligament to insert into the iliopubic eminence |
| Action | Weak lumbar spine flexion |
| Synergists | |
| Antagonists | Erector Spinae |
| Spinal innervation | L1 |
| Peripheral Innervation | Anterior ramus of L1 nerve root |
| Vasculature | |
The psoas minor is functionally insignificant compared to its companion Psoas Major muscle, and is not universally present in all humans.
