Which type of muscle is primarily responsible for moving bones?

Skeletal muscle is responsible for moving bones due to its structure and function. It is attached to the bones via tendons and can contract voluntarily, allowing for precise movements and control over the skeleton. This type of muscle is striated in appearance and is composed of long, multi-nucleated fibers that enable quick and forceful contractions.

Smooth muscle, on the other hand, is found in internal organs and is responsible for involuntary movements such as digestion and blood vessel contraction, but it does not move bones. Cardiac muscle, found only in the heart, also operates involuntarily and is responsible for pumping blood, but it does not affect bone movement. Involuntary muscle is a broader category that encompasses both smooth and cardiac muscle, but it does not specifically describe the muscle type that moves bones. Therefore, skeletal muscle is the correct choice for the role of bone movement.