If a muscle crosses the knee joint with a horizontal component to its direction of fibers and attaches onto the fibula at the lateral side of the leg,what action will it most likely have?
A)lateral rotation of the leg at the knee joint
B)medial rotation of the leg at the knee joint
C)plantarflexion of the foot at the ankle joint
D)extension of the leg at the knee joint

Question

Quizplus · Accepted Answer

A muscle that crosses the knee joint with a horizontal component to its direction of fibers and attaches onto the fibula at the lateral side of the leg is most likely the biceps femoris muscle. This muscle is a lateral rotator of the leg at the knee joint. Therefore, the correct answer is A) lateral rotation of the leg at the knee joint.

If a Muscle Crosses the Knee Joint with a Horizontal