What specific role does the skeletal system play relative to movement?

The skeletal system plays a critical role in movement by providing a framework for muscles to attach to and exert force against. This framework is made up of bones that serve as levers, which are pivotal in converting muscle contractions into body movement. When muscles contract, they pull on these bones, facilitating various movements such as walking, running, and lifting. The design of the skeletal system not only supports the body structurally but also allows for a wide range of motion and stability through its joints, which are connections between the bones. This allows the body to perform complex activities while maintaining balance and coordination.

Other functions mentioned in the incorrect options do not pertain to the skeletal system's role in movement. For instance, the skeletal system is not responsible for neural signals, blood circulation, or skin elasticity. These are functions attributed to other systems in the body, such as the nervous, cardiovascular, and integumentary systems, respectively.