Which muscle type has voluntary control and is attached to bones?

Which muscle type has voluntary control and is attached to bones?

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

Answer: (B)

The main idea is identifying the muscle type that is under voluntary control and connects to bones to move the body. Skeletal muscle fits this description: it attaches to bones via tendons and can be consciously controlled to perform actions like walking, lifting, and running. Its fibers are organized into sarcomeres, giving it a striped appearance and enabling quick, powerful contractions for movement. Cardiac muscle, in contrast, makes up the heart and contracts automatically without conscious control. Smooth muscle lines the walls of hollow organs and blood vessels and also contracts involuntarily to move substances through the body. The term visceral muscle is sometimes used to refer to smooth muscle in internal organs, which is also involuntary. Since the question specifies both voluntary control and attachment to bones, skeletal muscle is the correct choice.

The main idea is identifying the muscle type that is under voluntary control and connects to bones to move the body. Skeletal muscle fits this description: it attaches to bones via tendons and can be consciously controlled to perform actions like walking, lifting, and running. Its fibers are organized into sarcomeres, giving it a striped appearance and enabling quick, powerful contractions for movement.

Cardiac muscle, in contrast, makes up the heart and contracts automatically without conscious control. Smooth muscle lines the walls of hollow organs and blood vessels and also contracts involuntarily to move substances through the body. The term visceral muscle is sometimes used to refer to smooth muscle in internal organs, which is also involuntary.

Since the question specifies both voluntary control and attachment to bones, skeletal muscle is the correct choice.