Physiology Cardiovascular system a3d8d07a

The plateau phase of Myocardial action potential is due to

Efflux of Na+

Influx of Ca++

Influx of K+

Closure of voltage gated K+ channels

High-Yield Explanation

Ca2+ influx through more slowly opening Ca2+ channels produces the plateau phaseRef: Ganong's Review of Medical Physiology Twenty-Third Edition Page No: 491

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