An electrical charge is spread through your body... The brain sends an electrical current to the point of the nerve to tell the body of the event...
synapse
The Nerve Synapse
myelin
myelin
Neurons transmit signals across a synapse
A synapse is the gap between two neurones where messages can be sent.
Are you meaning between the buttons of the first nerve cell and the dendrites of the second one? If so, then it is called the synapse or synaptic cleft!
synapse
Axons are nerve fibers which extend as long, slender projections from nerve cells. They transmit electrical and electrochemical signals across the gap at a junction(synapse) between them and the other cell.
The distance across a nerve synapse is 20 nanometres or 2x10-8 metres
synapse
Analog signals are transmitted as electrical waves.