transmission of the nerve signal between two neurons with axon and synapse. close-up of a chemical synapse

anatomical anatomy axon biology body brain cell channel chemica chemical close communication connection contact dendrite diagram dopamine education health human illustration mechanisms medical medicine memory myelin nerve nervous network neural neurology neuron neurone neurons neurotransmitter neurotransmitters nucleus presynaptic receptor science scientific sheath signal structure synapse synapses synaptic system transmission transmit two use vector