A muscle is attached to the femur and the tibia.When the muscle contracts,the knee bends.That would mean that the:
A) tibia attachment is the origin.
B) femur attachment is the insertion.
C) tibia attachment is the insertion.
D) Both A and B are correct.

Question

Quizplus · Accepted Answer

According to the information given, when the muscle contracts, the knee bends. This movement is happening at the joint between the femur and tibia. Therefore, the attachment to the tibia is the insertion (the moving bone) and the attachment to the femur is the origin (the stationary bone). Therefore, the correct choice is C.

A Muscle Is Attached to the Femur and the Tibia