| | Conditions & Treatments | Bones, Joints & Muscles What are the three muscles that extend thigh and flex knee? The three muscles that extend the thigh and flex the knee are: 1) Rectus Femoris 2) Vastus Lateralis 3) Vastus Medialis Bones, Joints & Muscles - Related Articles Sports Massage Therapist Training Causes of Bunions on the Feet What are The parts of the thoracic vertebrae that articulate with ribs are? How to Increase Hip Joint Range of Motion Why do females pull sleeves over their hands? How to Strap a Damaged Knee How to Ease Leg Muscle Cramps
