VASTUS MEDIALIS

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