| 41. | Cocaine, he said, affects other neurotransmitters in addition to dopamine.
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| 42. | The drug blocks a certain neurotransmitter ( glutamate ) at its receptors.
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| 43. | Nicotine actually exerts its effect by mimicking a second neurotransmitter called acetylcholine.
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| 44. | The ultimate proof would come from measurements of neurotransmitters in the brain.
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| 45. | Neurotransmitters are chemicals that help the brain and body communicate.
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| 46. | It contains chemicals thought to stimulate neurotransmitters in the brain.
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| 47. | The gastrointestinal tract is awash in nerve cells and neurotransmitters.
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| 48. | The neurotransmitter is released from the presynaptic nerve through exocytosis.
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| 49. | The distinction between excitatory and inhibitory neurotransmitters is not absolute, however.
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| 50. | Some drugs block or stimulate the release of specific neurotransmitters.
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