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The resting membrane potential of a typical neuron is approximately

A+70 mV
B+30 mV
C0 mV
D−70 mV
Answer & Solution
Correct answer: D. −70 mV
About −70 mV (inside negative relative to outside). Maintained by the Na⁺/K⁺ pump and the membrane's selective K⁺ permeability.
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