Which body system enables movement and provides support, with major organs including skeletal muscles, smooth muscles, and cardiac muscle?

Which body system enables movement and provides support, with major organs including skeletal muscles, smooth muscles, and cardiac muscle?

• A. Muscular system
• B. Skeletal system
• C. Circulatory system
• D. Nervous system

Answer: (A)

Movement and support come from the muscular system, which includes skeletal, smooth, and cardiac muscles. Skeletal muscles attach to bones and enable voluntary movement and posture. Smooth muscles line the walls of internal organs and blood vessels, allowing involuntary movements that move contents through the body. Cardiac muscle makes up the heart and contracts to pump blood. Together, these muscle tissues achieve both locomotion and structural support. The other systems don’t encompass all three muscle types or their primary roles: the skeletal system provides the framework, the circulatory system handles blood flow, and the nervous system coordinates activity rather than forming the muscular tissues themselves.

Movement and support come from the muscular system, which includes skeletal, smooth, and cardiac muscles. Skeletal muscles attach to bones and enable voluntary movement and posture. Smooth muscles line the walls of internal organs and blood vessels, allowing involuntary movements that move contents through the body. Cardiac muscle makes up the heart and contracts to pump blood. Together, these muscle tissues achieve both locomotion and structural support. The other systems don’t encompass all three muscle types or their primary roles: the skeletal system provides the framework, the circulatory system handles blood flow, and the nervous system coordinates activity rather than forming the muscular tissues themselves.