Which muscle is under voluntary control and attached to bones?

• A. Smooth muscle
• B. Skeletal muscle
• C. Cardiac muscle
• D. Striated muscle

Answer: (B)

Movement of the body is driven by muscles you can consciously decide to use, connected to the skeleton to produce force. Skeletal muscles attach to bones via tendons, and when you decide to move, nerve impulses trigger these muscles to contract. The contraction pulls on the bones, creating motion and also helping with posture. This combination—being under voluntary control and attached to bones—defines skeletal muscle.

Smooth muscle, found in the walls of organs and blood vessels, contracts automatically without conscious control. Cardiac muscle makes up the heart and also contracts involuntarily. Striated refers to the striped appearance seen in skeletal and cardiac muscle, but the crucial details here are voluntary control and bone attachment, which point to skeletal muscle.