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biological

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excitatory neurotransmitter

excitatory neurotransmitter An excitatory neurotransmitter is a chemical messenger released by neurons that increases the activity of other nerve cells.

An excitatory neurotransmitter is a chemical messenger released by neurons that increases the activity of other nerve cells. In the brain, glutamic acid is the main example, while aspartic acid has also been considered excitatory but its exact transmitter role is less certain.