The action potential is produced by a combination of an influx of sodium ions and an efflux of potassium ions. Because these ions carry similar charge and are moving in opposite directions, why don't their movements simply cancel each other out so that there is no change in the membrane potential?

+1 vote

 

  

The opening of voltage-gated potassium channels is delayed.

  

The opening of voltage-gated sodium channels is delayed.

  

Voltage-gated potassium channels open at the same time as voltage-gated sodium channels.

  

Voltage-gated potassium channels open at the same voltage as voltage-gated sodium channels.

 

asked Dec 31, 2012 in Biology by anonymous
    

1 Answer

0 votes

 

The opening of voltage-gated potassium channels is delayed.

 

answered Dec 31, 2012 by anonymous

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