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Synapse

By , About.com Guide

Updated October 28, 2006

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Definition:
A synapse is the junction between two neurons (nerve cells) or between a neuron and a gland or muscle cell. Neurotransmitters carry impulses across the tiny gap between the cells, which is called the synaptic cleft. It is in the synaptic cleft that many medications for bipolar disorder, depression and schizophrenia operate to change the activity or availability of neurotransmitters.
Pronunciation: SIN-apse

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