Quadricep femoris group

origin vastus intermedius

Anterior & lateral shaft of the femur.

Whats the origin for the rectus femoris?

Anterior inferior iliac spine (AIIS)

What does the quadricep femoris group do?

Extends the tibiofemoral joint. (knee) Flexes the coxal joint.

What nerve innervates the quadriceps femoris group

Femoral L2 to L4

origin vastus lateralis

Lateral lip of linea aspera Gluteal tuberosity Greater trochanter

What muscle flexes the coxal joint?

Rectus femoris.

What 4 muscles make up the quadricep femoris group?

Rectus femoris. Vastus Medialis. Vastus lateralis Vastus intermedius

origin Vastus medialis

medial lip of linea aspera

Where do all the quadriceps insert?

via the patellar ligament to the tibial tuberosity