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Electrical voltage due to movement of ions across a membrane
Nernst Equilibrium (NE)
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For the Nernst to be reached there must be
Unrestricted flow
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If the flow of an ion is _____, the membrane voltage will _____ _____ from its Nernst
Reduced; go away
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If the flow of an ion is _______, the membrane voltage will ______ _______ its Nernst
Increased; go towards
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Essential in maintaing the electrochemical gradient across the cell membrane
Na/k Pump
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Transports sodium ions out of the cell and potassium ions into the cell
Na/K Pump
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Resting Potential (RMP) is:
-70mv
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If the membrane becomes more negative than the resting potential then it is:
Hyperpolarized
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If the membrane become more positive than it is:
Hypopolarized
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If the threshold is reached, an ______ ______ results.
Action Potential
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