Membrane Potential CHEAT SHEET

Membrane Potential CHEAT SHEET - balance cation movement...

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Membrane Potential ‘Cheat Sheet’ Depolarize P Na+ [Na + out ] P K+ [K + out ] [Ca ++ out ] P Ca++ Hyperpolarize P Na+ [Na + out ] P K+ [K + out ] [Ca ++ out ] P Ca++ 1. P = permeability. 2. Assume that Cl - is at equilibrium with ECl- equal to the membrane potential. In other words, its movement is governed strictly by the need to
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Unformatted text preview: balance cation movement across the membrane. 3. REMEMBER…INCREASING THE PERMEABILITY OR THE CONCENTRATION GRADIENT ACROSS THE MEMBRANE FOR A PERMEABLE ION WILL PULL THE MEMBRANE POTENTIAL TOWARDS THE VALUE OF THE EQUILIBRIUM POTENTIAL FOR THAT ION!!!...
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