What element is involved in the most important ion outward movement that gives rise to the pacemaker potential?

Question

Quizplus · Accepted Answer

The pacemaker potential is generated by the slow influx of cations (mainly calcium) and the efflux of potassium ions out of the cell. However, the outward movement of potassium ions is the most important factor in generating the pacemaker potential, as it counteracts the inward movement of calcium ions and repolarizes the cell to its resting potential. Therefore, choice B, potassium, is the correct answer.

What Element Is Involved in the Most Important Ion Outward