Eventually that creates an action potential at this section, the axon terminal, which is down inside our spinal cord. And then that sends the electric signal up to the spinal cord into the brain. And the brain basically senses that pressure. Now, sensory neurons and motor neurons. So these pathways that we discussed so far involve voluntary movement. So if I want to move my hand, if I want to extend it or bend it, this is basically a result of the somatic nervous system.