Physiology At the end of repolarization, the nerve is hyperpolarized. How does the membrane potential return to RMP? A Action of Na+/ K+ -pump B Inward leakage of Na+ C Decrease in K+ efflux D None of the above mechanisms 💡 Explanation At the end of repolarization, the nerve is hyperpolarized. How does the membrane potential return to RMP? ✓ Correct Answer: B. Inward leakage of Na+