Physiology FMGE 2018 6d18ca90 Resting membrane potential of nerve fibre is close to isoelectric potential of: A Potassium ions B Sodium ions C Chloride ions D Magnesium ions High-Yield Explanation RMP of nerve = -70mVEp of sodium = + 60mVEP of potassium = - 90mV Ep of chloride = -70mV (Same as RMP not closest )