Changes

An '''electrical impulse''' is a surge of electricity, that is, a large flow of electrons or charged particles occurring seemingly spontaneously after experiencing a stimuli.  

An '''electrical impulse''' is a surge of [[electricity]], that is, a large flow of [[electron]]s or charged particles occurring seemingly spontaneously after experiencing a stimuli.  

Several examples of electrical impulses include:

Several examples of electrical impulses include:

* Within the heart, an electrical impulse is used to cause beating, and these can be imitated in a pacemaker. Similarly a defibrillator uses a sudden electrical impulse to jump start the heart

* Within the [[heart]], an electrical impulse is used to cause beating, and these can be imitated in a pacemaker. Similarly a defibrillator uses a sudden electrical impulse to jump start the heart

* The human nervous system works by a series of electrical impulses to and from the brain that stimulate muscles and other organs

* The [[nervous system]] works by a series of electrical impulses to and from the brain that stimulate muscles and other organs

==References==

==References==