Im trying to get a clear picture of how heart conduction work with the body thanks.

Heart conduction system (http://your-doctor.com/healthinfocenter/medical-conditions/cardiovascular/conductiontutorial.html)

Also see
Electrical conduction system of the heart - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Electrical_conduction_system_of_the_heart) and
Bundle of His - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Bundle_of_His)