Question

A muscle is attached to the femur and the tibia. When the muscle contracts, the knee bends. That would mean that the muscle is attached to the _______ and the _______.

1) hip, ankle
2) shoulder, elbow
3) wrist, ankle
4) elbow, knee

Answer 1

A muscle that bends the knee when it contracts is attached to the elbow and knee. Option 4 is correct.

Step-by-step explanation:

When a muscle attached to the femur and tibia contracts to bend the knee, it means that the muscle is attached to the elbow and the knee. The femur, also known as the thighbone, is part of the hip joint at its proximal end and part of the knee joint at its distal end.

The tibia, or shinbone, is located below the knee and is involved in knee flexion when the hamstring muscles contract. Muscles like the quadriceps femoris, consisting of four muscles - the rectus femoris, vastus lateralis, vastus medius, and vastus intermedius - are responsible for extending the knee while the hamstrings, which include the biceps femoris, semitendinosus, and semimembranosus, are responsible for flexing it.

The appropriate answer to the student's question is option 4) elbow, knee.

The femur and tibia are involved in this movement, with the femur being part of the hip joint, and the tibia below the knee. The hamstring muscles contract to bend the knee.