how does a basic synapse work?

There are two types of synapse: chemical and electrical. A chemical synapse uses neurotransmitters to pass a signal from a neuron to another cell. Electrical synapses can pass electrical current to achieve the same objective - essentially, the synapse transmits voltage changes from the pre-synaptic cell to the post synaptic cell. You can find out more here:
26 June 2011
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