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quadriceps femoris
Anterior thigh muscles.
Origin: (by 4 heads)
1) rectus femoris
2) vastus lateralis
3) vastus intermedius
3) vastus medialis
Insertion:
-> patella & by the patellar ligament to the tibial tuberosity
Action: extends leg & flexes thigh (rectus femoris)
Innervation: femoral nerve
General
skeletal muscle (voluntary muscle)
References
Stedman's Medical Dictionary 27th ed, Williams &
Wilkins, Baltimore, 1999
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