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Psoas Minor
From WikiMSK
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Psoas Minor | |
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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.