kr4 at nyu.edu
Tue Mar 22 15:17:08 EST 2005
On Tue, 22 Mar 2005 13:18:19 -0500, Joseph Legris
<jalegris at xympatico.ca> wrote:
>Kalman Rubinson wrote:
>> On Mon, 21 Mar 2005 11:06:57 -0500, Joseph Legris
>> <jalegris at xympatico.ca> wrote:
>>>Kalman Rubinson wrote:
>>>>Well, another nit to pick is that the existence of a slightly
>>>>decremented potential (such as the AP) at the internodal region
>>>>requires neither transmembrane currents or membrane excitation, only a
>>>>potential difference (which does exist).
>>>Yes, but in a conducting medium, potential difference == current flow.
>> But not between the inside and outside of an internodal region.
>O.K. but your statement above reduces to:
>"the existence of a slightly decremented potential at the internodal
>region requires ... only a potential difference (which does exist).
>What then is the cause of the decrement to the action potential between
Longitudinal resistance and charging of the (small) membrane
More information about the Neur-sci