Which statement best describes the musculoskeletal system?

• A. The system responsible for regulating reflexes only.
• B. Made up of bones, muscles, and other supporting tissues; provides stability and movement.
• C. The network of nerves controlling thought.
• D. The organ system that processes nutrients.

Answer: (B)

The main idea here is what the musculoskeletal system is and what it does. It’s made up of bones, muscles, and other supporting tissues like tendons and ligaments, and it provides both stability and movement. Bones form the framework and protect internal organs, muscles generate force to move the bones, joints allow flexibility, and tendons and ligaments connect these parts to work together. Because of this collaboration, the system supports posture, enables locomotion, and helps hold the body upright. The other statements point to different systems—nerves regulating reflexes, thoughts controlled by the nervous system, and nutrient processing by the digestive system—so they don’t describe the musculoskeletal system.