Digitalis exerts its primary mechanical effect by _____ the sodium-potassium pump on the myocardial cell membrane,which leads directly to an _____ intracellular sodium concentration.

Question

Quizplus · Accepted Answer

Digitalis inhibits the sodium-potassium pump on the myocardial cell membrane, which leads to an increase in intracellular sodium concentration. This increase in intracellular sodium concentration indirectly leads to an increase in calcium concentration, resulting in increased contractility of the heart.

Digitalis Exerts Its Primary Mechanical Effect by _____ the Sodium-Potassium