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4 terms

anatomy 4 quadriceps muscles

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Rectus femoris (quadricep muscle)
O: anterior inferior iliac spine
I: tibial tuberosity
A: flex hip & extends knee
part of the quadriceps group
Vastus medialis (quadriceps muscle)
O: linea aspera
I: tibial tuberosity
A: Extends leg & knee;
part of the quadriceps group
Vastus lateralis (quadriceps muscle)
O: linea aspera
I: tibial tuberosity
A: Extends leg & knee
part of the quadriceps group
vastus intermedius (quadriceps muscle)
O: anterior surface of femur
I: tibial tuberosity
A: extends leg and knee

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