Topic: neurotransmitter

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neurotransmitter

The Columbia Encyclopedia, Sixth Edition
neurotransmitter chemical that transmits information across the junction ( synapse ) that separates one nerve cell (neuron) from another nerve cell or a muscle. Neurotransmitters are stored in the nerve cell's bulbous end (axon). When an electrical impulse traveling along the nerve reaches the axon, the neurotransmitter is released and travels across the synapse, either prompting or inhibiting continued electrical impulses along the nerve. There are more than 300 known neurotransmitters, including chemicals such as acetylcholine , norepinephrine , adenosine triphosphate , and the ... Read more
Neurotransmitters
Gale Encyclopedia of Mental Disorders ... communicate messages by secreting neurotransmitters. Neurotransmitters can excite or inhibit neurons (nerve cells). Some common neurotransmitters are acetylcholine, norepinephrine ... and norepinephrine are excitatory neurotransmitters while dopamine, serotonin, and GABA are inhibitory. Each ... Read more
neurotransmitter
A Dictionary of Psychology neurotransmitter n. Any of about 50 chemical substances, usually ... nervous system glutamate is the main excitatory neurotransmitter and GABA the main inhibitory one; in the peripheral ... glutamate for sensory neurons. Dopamine functions as a neurotransmitter mainly in the midbrain, noradrenalin ... Read more

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Neurotransmitter