31. Lower potassium levels in the extracellular space cause hyperpolarization of the resting membrane potential . 32. In the heart, hypokalemia causes hyperpolarization in the myocytes'resting membrane potential . 33. The inset shows a recording of the rhythmic oscillations of the PD membrane potential . 34. :: Membrane potential also would be useful. 35. HK2 is believed to maintain the mitochondrial membrane potential by keeping ADP levels high. 36. Recovery from desensitization is accelerated by extracellular H + and a negative membrane potential . 37. Fast delayed rectifier channels open quickly but are shut by inactivation at high membrane potentials . 38. These concentration gradients provide the potential energy to drive the formation of the membrane potential . 39. The more ions are permeant the more complicated it becomes to predict the membrane potential . 40. The rapid influx of sodium ions causes the membrane potential to reach a positive charge.
