How does a nerve impulse travel through the body ?

Explanation

1) The information acquired at the dendritic tip of a nerve cell sets off a chemical reaction that creates an electrical impulse.
2) This impulse travels from the dendrite to the cell body and then along the axon to its end.

3) At the end of the axon the electrical impulse sets off the release of some chemicals.
4) These chemicals cross the gap or synapse and start a similar electrical impulse in a dendrite of the next neuron.
5) A similar synapse finally allows the delivery of such impulse from neurons to other cells such as muscles or glands.