MCAT Question of the Day
    •

    Q:

    		 Which statement correctly characterizes the Nodes of Ranvier?
    		 

    A

    		 They are insulated by myelin sheaths.

    B

    		 They are insulated by Schwann cells.

    C

    		 They possess a double membrane used for developing a proton motive force for action potentials

    D

    		 They possess gated Na and K channels involved in action potentials



    Nervous System |
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