Biologically Active Substance
neurotransmitter
neu·ro·trans·mit·ter [ noo r-oh-trans-mit-er, -tranz-, nyoo r- ]
Definitions related to neurotransmitters:
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A chemical messenger released by nerve cells that transmits messages to nearby other nerve cells.Harvard Dictionary of Health TermsHarvard Medical Publishing, 2011
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A chemical that is made by nerve cells and used to communicate with other cells, including other nerve cells and muscle cells.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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Any of a group of substances that are released on excitation from the axon terminal of a presynaptic neuron and travel across the synaptic cleft to either excite or inhibit the target cell; included are neuromodulators, neuroregulators, neuromediators, neurohormones, and neurohumors, whether or not acting at synapses.CRISP ThesaurusNational Institutes of Health, 2006
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Endogenous signaling molecules that alter the behavior of neurons or effector cells. Neurotransmitter is used here in its most general sense, including not only messengers that act directly to regulate ion channels, but also those that act through second messenger systems, and those that act at a distance from their site of release. Included are neuromodulators, neuroregulators, neuromediators, and neurohumors, whether or not acting at synapses.NCI ThesaurusU.S. National Cancer Institute, 2021
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Endogenous signaling molecules secreted by neurons that alter the behavior of neurons or effector cells. Neurotransmitter is used here in its most general sense, including not only messengers that act directly to regulate ion channels, but also those that act through second messenger systems, and those that act at a distance from their site of release. Included are neuromodulators, neuroregulators, neuromediators, neurohormones, and neurohumors, whether or not acting at synapses.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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Neurotransmitter, 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...Encyclopedia Britannica, Inc., 2020
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