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Nervous System (synapses (neurotransmitters (must be cleared in synapse to…

- - - - enzymes destroy neurotransmitter
      - neurotransmitter diffuses away
- - - - K+ still open
      - voltage-gated Na+ open
        
        Na+ flowing in cell (+ to - area) depolarizes it
      - hyperpolarized - more negative
        
        chemically gated K+ open
        
        more K+ flowing out of cell hyperpolarizes it
        
        voltage-gated Na+ back closed, K+ still open
        
        recovery period