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23 year old man brought in to ER by brother hardly speaking having muscle…

- - - - ACH diffuses, binds to receptor,triggers muscle action potential
        
        release of ach quantam
        
        ap to t tubule opens ca2 enters into sarcoplasm
        
        CA2 binds to troponin
        
        contractions
        
        Ca2 channel close calcium pumps use atp to restore Ca2 levels
        
        1 more item...
  - - - vesicle trafficking
        
        tethering
        
        docking
        
        priming
        
        fusing
      - muscle twitch
        
        single contraction that last fraction of a second
        
        Summation
        
        increases force of contraction increasing frequency of muscle fibers
        
        Tetanus
        
        fusion of a contraction to produce continuous contraction
- - - - Muscular System
        
        Respiratory system
        
        Excretory System