How your nervous system works.

Your nervous system has a big impact on your body. It is a system that controls your memory, learning, thought, tasting, hearing, moving, laughing, walking, running, writing, and reacting to something. An example would be when somebody comes up behind you and taps you on your shoulder and you look back to see what it was, that's your nervous system sending a signal to your brain to react. If you didn't have your nervous system then you couldn't be able to react to when somebody or something taps you or hits you or whatever. 
If you were wondering what your nervous system is made up from, it's made up of nerves, muscles, brain impulses, and your spinal cord. All together that makes up your nervous system.
By: Karina Hoge-Salerno