L&S C30T Lec19 - L&S C30T Drugs in the Brain Lecture 19...

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L&S C30T Drugs in the Brain Lecture 19: Amphetamine Homework Assignment #4: Writing exam questions p 11-12 Due November 5-8 (term paper also do) Print 2 copies, 1 with name & 1 without AMPHETAMINE Neuronal synapse in action Allows neurotransmitters to leak of axon terminal, allows synapses and ones using dopamine and norepinephrine become very active Brain norepinephrine circuitry 100,000 cells in locus send neurons into brain Locus coeruleus Amphetamine makes brain become over-stimulated Brain dopamine circuitry Relatively small numbers of neurons in brain stem, small number of neurons send axons out to brain Limited to interior of brain and frontal lobes Not as much as norepinephrine Effects of amphetamine-type drugs Increase activity at norepinephrine and dopamine synapses Sympathomimetic effects Increased heart rate Increased blood pressure Dilation of pupils Dilation of lung airways
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