Please ask an intelligible question.
Neural impulses involve electrochemical changes. Is this what you are seeking?
I searched Google under the key words "'nervous system' 'electrochemical system'" to get these possible sources:
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.
I hope this helps. If not, make your request more specific on a repost. Thanks for asking.