Action Potential

Loren A. Evey lae2 at psu.edu
Wed Dec 11 00:47:46 EST 1996


 
> > How does an impulse travel down an axon in action potential
> 
Major snip
> At the end of the journey, at the synaptic terminal, the voltage 
sensative
> sodium channels are joined by voltage sensative calcium channels, and 
it
> is the influx of calcium that is responsible for causing the
> neurotransmitters, packages in little membrane vesicles, to be released
> onto the next cell.  That next cell may be another neuron, and the 
whole
> thing could start again at the next cell, and so on ...
> 
> Hope that helped.
> 
> Matt

Excellent, would you extend your explanation to include saltatory 
conduction?  Thanks.




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