<P> Neurons are interconnected in complex arrangements , and use electrochemical signals and neurotransmitter chemicals to transmit impulses from one neuron to the next ; axon terminals are separated from neighboring neurons by a small gap called a synapse , across which impulses are sent . The axon terminal , and the neuron from which it comes , is sometimes referred to as the `` presynaptic '' neuron . </P>
<P> Neurons are interconnected in complex arrangements , and use electrochemical signals and neurotransmitter chemicals to transmit impulses from one neuron to the next ; axon terminals are separated from neighboring neurons by a small gap called a synapse , across which impulses are sent . The axon terminal , and the neuron from which it comes , is sometimes referred to as the `` presynaptic '' neuron . </P>
the blank is the tiny gap between the axon terminal and the next neuron
the blank is the tiny gap between the axon terminal and the next neuron
synapse
synapse