(Quadriceps Femoris) Rectus Femoris

Rectus femoris

Rectus femoris

Muscle Origin

Anterior inferior iliac spine to tibial tuberosity.

There are two heads to the rectus femoris. The straight head attaches from the anterior inferior iliac spine, and the reflected head attaches from the groove on the upper margin of the acetabulum. American Academy of Manual Medicine


Inserts into the patellar tendon as one of the four quadriceps muscles.

The quadriceps tendon along with the three vasti muscles, enveloping the patella then by the patellar ligament into the tibial tuberosity.


Extend lower leg at knee.

Knee extension; flexes the thigh at the hip.

Innervation – Nerve control

Femoral nerve.

The femoral nerve that serves the upper thigh and inner leg, and the muscles that extend the knee.


Descending branch of the lateral femoral circumflex artery.

The lateral circumflex femoral artery (lateral femoral circumflex artery, external circumflex artery) is an artery in the upper thigh. Wiki

Antagonist muscles


In human anatomy, a hamstring is any of the three tendons contracted by three posterior thigh muscles (semitendinosus, semimembranosus and biceps femoris), and the term is often also used to refer to the muscles themselves. The hamstring tendons make up the borders of the space behind the knee; the muscles are involved in knee flexion and hip extension. Wiki

Pictures of muscles


Trigger Point Referrals


Stretching description








Additional Resources
Sports Lab
American Academy of Manual Medicine

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