Which system includes the bones and muscles?

• A. Musculoskeletal System
• B. Urinary System
• C. Ovaries
• D. Skin System

Answer: (A)

Bones provide the framework that supports the body and stores minerals, while muscles attach to those bones and contract to produce movement. Joints allow that movement to occur, and tendons connect muscle to bone to create leverage. Put together, these parts form a system focused on structure and movement, with organs that work to maintain posture, enable locomotion, and protect internal organs. The other options describe systems that don’t include both bones and muscles: the urinary system handles waste elimination, the ovaries are part of the reproductive system, and the skin system protects the body but doesn’t include bones or muscles. So the system that includes the bones and muscles is the musculoskeletal system.