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( Neural groups, synaptic cleft ) are groups in which neurons communicate with each other. Signals ( within the neuron, neural group ) are transmitted electrically, but signals between neurons are transmitted by ( synaptic transmission, synapse ). Each neuron is separated from the next one by a ( synapse, neuron ), the synaptic ( cleft, synaptic transmission ), the ( presynaptic, postsynaptic ) terminal and the ( postsynaptic receptor, presynaptic, postysynaptic, presynaptic receptor ) site. When the electrical impulse reaches the presynaptic terminal it triggers the release of ( neurotransmitters, chemicals ) from the ( synaptic vesicles, neurotransmitters, synaptic cleft ).
