Definition:
Neurotransmitters are chemical messengers released from neurons that cross the synapse from one neuron to another, stimulating the postsynaptic neuron.
By Keath Low, About.com Guide
Updated September 15, 2008
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
Neurotransmitters are chemical messengers released from neurons that cross the synapse from one neuron to another, stimulating the postsynaptic neuron.