neurotransmitter

A substance found in chemical synapses that is released from the presynaptic terminal in response to depolarization by an action potential, diffuses across the synaptic cleft, and binds a ligand-gated ion channel on the postsynaptic cell. This alters the resting potential of the postsynaptic cell, and thus its excitability. Examples: acetylcholine, GABA, noradrenaline, serotonin, dopamine. See Table N1. ...

neurotransmitter

Chemical substances used in the transmission of nerve impulses and in the brain

Neurotransmitter

A specialised chemical produced in nerve cells that permits the transmission of information between nerve cells .

Neurotransmitter

A chemical released by neurons at a synapse for the purpose of relaying information via receptors.
Found on http://www.bbc.co.uk/radio4/reith2003/glossary.shtml

neurotransmitter

[n] - transmits nerve impulses across a synapse
Found on http://www.webdictionary.co.uk/definition.php?query=neurotransmitter

Neurotransmitter

[See firstly neurotransmission.] The contents of the synaptic vesicles released from the pre-synaptic neuron into the synaptic cleft. These chemicals induce a post-synaptic potential in the receiving neuron.
Found on http://www.encyclo.co.uk/local/20408

Neurotransmitter

A chemical that passes electrical impulses from the end of one nerve to the next.
Found on http://www.ibs-relief.co.uk/glossary.html

neurotransmitter

Neurotransmitters are molecules that are used to carry signals from one neuron to another. One neuron releases the neurotransmitter near another neuron's receptors. The neurotransmitter diffuses across the gap between the neurons and locks into a receptor site on the surface of the downstream neuron. This induces a change in the downstream neuron....
Found on http://antoine.frostburg.edu/chem/senese/101/glossary/n.shtml

Neurotransmitter

A substance that transmits nerve impulses across a synapse.
Found on http://www.chemicalglossary.net/definition/1165-Neurotransmitter

Neurotransmitter

A chemical mediator released from nerve terminals in response to nerve stimulation and which binds to receptors which are on the surface of other nerve cells. There are a number of different classes of neurotransmitters as well as many different receptor types and subtypes.
Found on http://www.vernalis.com/component/content/article/101-placing-and-open-offe

Neurotransmitter

is a chemical substance released by a presynaptic nerve terminal that diffuses and binds to specific postsynaptic receptors which leads to an alteration in current flow in that postsynaptic cell
Found on http://www.medicalneuroscience.com/ngloss.htm

Neurotransmitter

Neurotransmitter: A chemical that is released from a nerve cell which thereby transmits an impulse from a nerve cell to another nerve, muscle, organ, or other tissue. A neurotransmitter is a messenger of neurologic information from one cell to another.
Found on http://www.medterms.com/script/main/art.asp?articlekey=9973

neurotransmitter

Any of a group of substances that are released on excitation from the axon terminal of a presynaptic neuron of the central or peripheral nervous system and travel across the synaptic cleft to either excite or inhibit the target cell. Among the many substances that have the properties of a neurotransmitter are acetylcholine, noradrenaline, adrenalin...
Found on http://www.encyclo.co.uk/local/20973

neurotransmitter

noun transmits nerve impulses across a synapse
Found on http://wordnetweb.princeton.edu/perl/webwn?s=neurotransmitter

neurotransmitter

(noor″o-transĀ“mit-әr) a substance (such as norepinephrine, acetylcholine, or dopamine) that is released from the axon terminal of a presynaptic neuron on excitation, and that travels across the synaptic cleft to either excite or inhibit the target cell.
Found on http://www.encyclo.co.uk/local/21001

neurotransmitter

any of a group of chemical agents released by neurons (nerve cells) to stimulate neighbouring neurons, thus allowing impulses to be passed from one ... [18 related articles]
Found on http://www.britannica.com/eb/a-z/n/29

neurotransmitter

any of a group of substances that are released on excitation from the axon terminal of a presynaptic neuron of the central or peripheral nervous system and travel across the synaptic cleft to either excite or inhibit the target cell. Among the many substances that have the properties of a neurotransmitter are acetylcholine, norepinephrine, epineph....
Found on http://users.ugent.be/~rvdstich/eugloss/DIC/dictio59.html

neurotransmitter

The arrival of a nerve impulse stimulates the release of neurotransmitters from vesicles. They pass across the synapse and open channels in the target cell. Charged particles can then enter and trigger a second impulse. A chemical that mediates the transmission of a nerve impulse across the syna...
Found on http://www.daviddarling.info/encyclopedia/N/neurotransmitter.html

neurotransmitter

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, ...
Found on http://www.infoplease.com/ce6/sci/A0835318.html

Neurotransmitter

A neurotransmitter is a chemical by which a nerve cell communicates with another nerve cell or with a muscle.
Found on http://www.probertencyclopaedia.com/browse/EN.HTM

neurotransmitter

Type: Term Pronunciation: nū′rō-trans′mit-ĕr Definitions: 1. Any specific chemical agent (including acetylcholine, five amines, four amino acids, two purines, and more than 28 peptides) released by a presynaptic cell, on excitation, that crosses the synapse to stimulate or inhibit the postsynaptic cell. More than one may ...
Found on http://www.medilexicon.com/medicaldictionary.php?t=60315

neurotransmitter

Chemical that diffuses across a synapse, and thus transmits impulses between nerve cells or between nerve cells and effector organs (for example, muscles). Common neurotransmitters are the amino acids glutamate and GABA (gamma-amino butyric acid), as well as noradrenaline (which also acts as a hormone) and acetylcholine, the latter being most f...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0006845.html

neurotransmitter

(noor;o-trans;mit-er) A chemical contained in synaptic vesicles in nerve endings that is released into the synaptic cleft, where it stimulates the production of either excitatory or inhibitory postsynaptic potentials.
Found on http://www.mhhe.com/biosci/abio/glossary.mhtml

neurotransmitter

(noor;o-trans;mit-er) A chemical contained in synaptic vesicles in nerve endings that is released into the synaptic cleft, where it stimulates the production of either excitatory or inhibitory postsynaptic potentials.
Found on http://www.mhhe.com/biosci/abio/glossary.mhtml

neurotransmitter

A chemical that is made by nerve cells and used to communicate with other cells, including other nerve cells and muscle cells.
Found on http://www.cancer.gov/dictionary?expand=N
No exact match found


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