What part of the body allows us movement?

The skeletal and muscular systems are essential for movement in the body. The skeletal system provides the framework and structure for the body, consisting of bones that support and protect vital organs while also serving as attachment points for muscles. The muscular system works in conjunction with the skeletal system by contracting and relaxing to produce movement. Muscles are attached to bones via tendons, and when a muscle contracts, it pulls on the bone, resulting in motion.

The coordination between these two systems is crucial for all types of voluntary movements, such as walking, running, and lifting, as well as involuntary movements, such as muscle contractions that help with digestion. Therefore, this option accurately identifies the primary systems involved in facilitating body movement.