The muscles of this region typically act to extend the leg at the knee joint.

The muscles of this region typically act flex the knee joint and extend the hip joint. They also act to stabilize the knee and hip joints.

The muscles of this region typically act to flex the forearm at the elbow joint and adduct the arm at the shoulder joint. Other actions include supination, extension, and abduction.

The muscles in this region typically act to support and balance the body during movement.