MCAT Question of the Day
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    Q:

    		 An action potential at one Node of Ranvier stimulates depolarization at its subsequent node by which of the following mechanisms?
    		 

    A

    		 vesicular transport of ions along the myelin sheath

    B

    		 electron flow through the myelin sheath

    C

    		 diffusion of ions through the cytoplasm

    D

    		 exocytosis of neurotransmitter which diffuses to the subsequent node



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