Neurotransmitter
Signaling, & Types
neurotransmitter, also called chemical transmitter or chemical messenger, any of a group of chemical agents released by neurons (nerve cells) to stimulate neighbouring neurons or muscle or gland cells, thus allowing impulses to be passed from one cell to the next throughout the nervous system.
The following is an overview of neurotransmitter action and types; for more information, see nervous system.
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