But in the case of the autonomic nervous system the motor division is even further subdivided into two. We have the sympathetic and the parasympathetic systems. Now before we actually discuss these two individual systems, let's discuss what the difference is between our somatic and autonomic nervous system. Now the somatic nervous system basically innervates skeletal muscle, skeletal tissue. And that means our somatic nervous system is responsible for our voluntary movement. So what allows me to move my arm back and forth is the fact that inside my arm I have skeletal tissue that is innovated by our somatic nervous system, our skeletal muscle.