robin082006
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Equilibrium potential in a nerve cell for K+ = -105 mV, for Na+ = +55 mV
Serum K+ = 2.9 mEq/L, Na+ = 125 mEq/L
The resting potential for a nerve cell in this person is approximately:
a. + 80 mV
b. +50 mV
c. +22 mV
d. -25 mV
e. - 50 mV
f. - 98 mV
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| ssrpk
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f. - 98 mV
i did'nt calculate it, but low K+ hyperpolarizes the membrane, others don't even come close, so this is my best guess!
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| sturge_weber
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but ssrpk, dont u think, that excess k will hyperpolarize the memb, and excess of na will depolarize, here both the na and the k are decreased...
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| ssrpk
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sodium has minimal impact on RMP as it's conductance is zero during resting phase.
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| msyamp
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good point thank you
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| sturge_weber
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gotya thanks buddy
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| robin082006
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you got it
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| mildus
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Ssrpk, excellent as always!
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