Resting membrane potential of nerve fiber is_______________?
Correct answer: A. -70 mv
- A. -70 mv
- B. -90 mv
- C. -55 mv
- D. + 35 mv
Explanation
A typical nerve fibre has a resting membrane potential of about −70 mV, maintained mainly by potassium leak and the sodium-potassium pump. Skeletal muscle fibres are closer to −90 mV.
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