Video narration
What gets you out of a chair? Not one muscle alone: many work together to raise and steady you. The movement muscles, called skeletal muscles, are the muscles you use to move your body. Across your upper body, muscles in the chest and back help steady you, while your shoulders and arms reach, lift, and carry. Muscles around your abdomen and hips help connect and support the work between your upper body and legs. Your thighs and calves help you straighten, take a step, and keep moving. This is a simple map, not every muscle. Here's the key: muscles don't push bones; they pull on them through tendons, moving joints. Different groups work together, with some steadying you as others move you. So what gets you standing and moving? Muscle groups pull on bones through tendons, moving your joints. That's how you stand up and get moving.