muscles and the body
How are the systems connected?
The skeletal system provides support to the body, and the muscular system
The nervous system is connected to the muscular system in that the brain sends signals down the spinal cord to different parts of the body to move muscles. In the case of the legs and feet, to walk, run, sit down, etc. When your muscles get sore, it is the nervous system that sends signals to your brain to tell you that you are in pain.