| Muscle Name |
 |
|
| Origin |
 |
|
| Insertion |
 |
|
| Function |
 |
|
| vastus medialis |
linea aspera |
tibial tuberosity |
knee extension |
| rectus femoris |
anterior inferior iliac spine (AIIS) |
tibial tuberosity |
knee extension, hip flexion |
| Articularis Genus |
distal anterior femur |
fibrous membrane of knee joint |
pulls fibrous membrane proximaly during knee extension so it's out of the way |
| Sartorius |
Anterior Superior Iliac Spine (ASIS) |
medial to the tibial tuberosity |
hip flexion, knee flexion, lateral rotation of hip |
| Vastus intermedius |
anterior femur |
tibial tuberosity |
knee extension |
| vastus lateralis |
linea aspera |
tibial tuberosity |
knee extension |