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Neurotransmitter

From , former About.com Guide

Updated December 17, 2007

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Definition: A chemical that carries signals across gaps, called synapses, from one neuron to another in the brain.
Common Misspellings: neurotransmiter
Examples:
Neurotransmitters like dopamine are chemical messengers that travel from a synapse on one neuron to a synapse on the next, allowing signals to move to different areas of the brain.

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