"origin(s): consists of two proximal heads which form a conjoined tendon 1,5"
"action: flexes the thigh at the hip joint and extends the leg at the knee joint"
"arterial supply: descending branch of the lateral circumflex femoral artery"
"There is an intermingling of ~15% of muscle fibres related to each origin, and rectus femoris can be thought of as two muscles 7. The distal myotendinous junction forms a short free tendon that joins with the vastus tendons to form the quadriceps tendon."