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Quadriceps Femoris, Vastus Lateralis:
Proximal Attachment - Greater trochanter and lateral lip of linea aspera of femur
Distal Attachment - Via common tendinous and independent attachments to base of the patella; indirectly via patellar ligament to tibial tuberosity; medial and lateral vasti also attaches to tibia and patella via aponeuroses (medial and lateral patellar retinacula)
Innervation - Femoral nerve
Action - Extend leg at knee joint; rectus femoris also steadies hip joint and helps iliopsoas flex thigh