Physiology RMP of a smooth muscle cell is: A - 10 mV to - 20 mV B - 45 mV to - 55 mV C - 65 mV to - 75 mV D - 85 mV to - 90 mV 💡 Explanation RMP of a smooth muscle cell is: ✓ Correct Answer: B. - 45 mV to - 55 mV