What event during the action potential causes the resting membrane potential to change from about −70 mV to about +30 mV? A. K + ions moving into the cell B. K + ions moving out of the cell C. Na + ions moving into the cell D. Na + ions moving out of the cell
Option C. It takes positive ions shifting into the cell to extrade the resting ability from −70 to 30 mV. The ions are sodium.
