06-09-2007, 09:19 AM
increased extracellular potassium causes hyperpolarization
I think,not sure
I think,not sure
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physio Q - amin92
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06-09-2007, 09:19 AM
Decrease in intracellular K+ will cause hyperpolarization
06-09-2007, 09:23 AM
Hyperpolarization is when the negative intracellular potential becomes more negative. That happens when there is K+ efflux from the cell.
06-09-2007, 09:26 AM
when the negative intracellular potential becomes more negative. ,it causes resting potential
06-09-2007, 09:29 AM
well.. maybe I got my concepts wrong here, but thats what it says in the book. just take a look at Kaplan Physio page 44
06-09-2007, 09:35 AM
always good to have someone else check too. Well now we'll know without confusion. Hyperpolarization---- Increased K+ efflux
 Cheers!
06-09-2007, 09:37 AM
yeah in cardiac action potential and anti arrythmic
increase intracellular K cause hyperpolarization
06-09-2007, 09:38 AM
this is the same mechanism for quabain and digoxin
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