If the knee was held rigid and the biceps femoris contracted, what movement would occur

Answer and Explanation:

The femoral biceps is one of the hamstrings. These muscles are located in the back of the thigh and are the most important knee flexors.

In addition, the biceps have the ability to extend the thigh over the pelvis and rotate the hip laterally. This is because it has a muscular belly that originates from the hip, more precisely in the ischial tuberosity of the ischium.

When the biceps are contracted, its most important function is to contract the knee, but if it remains rigid its function will be mainly the extension of the thigh.