VASTUS MEDIALIS
| ORIGIN Lower intertrochanteric line, spiral line, medial linea aspera and medial intermuscular septum |
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| INSERTION Medial quadriceps tendon to patella and directly into medial patella, via ligamentum patellae into tubercle of tibia |
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| ACTION Extends knee. Stabilizes patella |
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| NERVE Posterior division of femoral nerve (L3,4) |