| Muscle |
Origin |
Insertion |
Nerve |
Action |
Notes |
| quadriceps femoris |
rectus femoris |
anterior inferior iliac spine,
ischium. |
quadriceps tendon > patellar tendon > tibial tuberosity |
femoral nerve |
flexion of hip,
extension of knee |
|
| vastus lateralis |
intertrochanteric line,
linea aspera. |
extension of knee |
|
| vastus medialis |
intertrochanteric line,
linea aspera. |
extension of knee,
helps prevent displacement of patella. |
|
| vastus intermedius |
shaft of femur |
extension of knee |
|
| sartorius |
anterior iliac spine |
tibia (below medial condyle) |
femoral nerve |
brings to cross-legged position. |
|