45. Nervous System
Neurons and Action Potentials
Let's look at how the action potential is conducted along the axon? As the change in charge difference across the membranes spreads from open sodium channels other sodium channels farther along the axon begin to open The original sodium channels close and adjacent potassium channels open As potassium ions move out of the cell the original charge difference across the membrane is restored and then the potassium channels close Meanwhile, new sodium channels open followed by the opening of new potassium channels and the closing of sodium channels In the manner, the action potential is propogated along the axon of the neuron eventually reaching another cell The information carried by this action potential will be process with other information permitting this baseball player to make a spectacular catch
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