The Spanish Flu was a deadly strain of influenza that killed millions of people worldwide during 1918-1919. Symptoms include fatigue, fever, and headaches.
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Answer:
The inward flow of sodium ions increases the concentration of positively charged cations in the cell and causes depolarization, where the potential of the cell is higher than the cell's resting potential. The sodium channels close at the peak of the action potential, while potassium continues to leave the cell.
