Because so many Na⁺ ions move into a cell during an action potential and so many K⁺ ions move out,no further action potentials can be generated in a given membrane until the Na⁺,K⁺-ATPase pumps can restore the concentration gradient.

Question

Quizplus · Accepted Answer

During an action potential, the number of Na⁺ and K⁺ ions that move across the membrane is relatively small compared to the total number of ions inside and outside the cell, so the concentration gradients of Na⁺ and K⁺ are not significantly disrupted. The cell can generate multiple action potentials before the Na⁺,K⁺-ATPase pumps need to significantly restore the ion gradients.

Because So Many Na⁺ Ions Move into a Cell During