0 Increase in ECF k+

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Q.When extracellular k+ is increased from 4 meq to 10 meq what will happen?
a. RMP becomes more negative
b. increase in sodium conductance
c. increase in potassium conductance
d. Na-K ATP ase will be stopped



ANSWER:
ans: B
K+ increased in ECF , will decrease RMP , thereby increasing ecitability and thus increases ability of Na+ to move into the cell (increases its conductance)

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