Which Statement About the Skeletal System as a Series of Joints

Multiple Choice

Which statement about the skeletal system as a series of joints and levers is true?

A) An extensor muscle moves a bone closer to the body.
B) Antagonistic pairs include an extensor muscle and a flexor muscle associated with the same joint.
C) Tendons hold together bones that meet at joints.
D) Ligaments attach muscles to bones.
E) The knee joint is a ball-and-socket joint.