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Central Nervous System (Drugs that Affect Brain (Alcohol (loss of motor…
Central Nervous System
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Action Potential
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Strong enough stimulant or nerve impulse causes NA+ gates to open-NA+ rushes intro cell causing depolorazation
If strong enough depolorazation occurs threshold potential is reached(+30) and impulse is sent down Axon
K+ rushes out of neuron after NA+ rushes in , which causes a repolarization of the membrane back to resting potential
Drugs that Affect Brain
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Cocaine
increased energy,decreased appetite
mental alertness,increased heart rhythm,nausea,strokes and sezuires
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