The quadriceps crosses the knee joint, allowing us to extend it. Unlike the vastus medialis, vastus lateralis, and vastus intermedius, the rectus femoris also crosses the hip joint. What extra function does this allow it to perform?
A)Hip Extension
B)Hip Flexion
C)Knee Flexion
D)B and C

Question

Quizplus · Accepted Answer

The rectus femoris crosses the hip joint and acts as a hip flexor. It, however, does not contribute to knee flexion.

The Quadriceps Crosses the Knee Joint, Allowing Us to Extend