Cardiac cycle — Flashcards

The onset of reduced ventricular ejection corresponds with the onset of the _____ wave on ECG

The a wave on jugular venous pulse corresponds to _____

What phases of the myocardial action potential are not present in an SA node action potential? _____

_____ are low-resistance paths between cardiac cells that allow for rapid electrical spread of action potentials

Which phase in the SA node accounts for its pacemaker activity and automaticity? _____

Cardiac tamponade leads to equilibration of _____ pressures in all 4 chambers

During isovolumetric relaxation, the ventricular pressure becomes less than aortic pressure and the _____ valve closes

The abnormal heart sound _____ may be audible during rapid ventricular filling (early diastole)

Phase 2 of the myocardial action potential (plateau) is caused by a balance of _____ efflux and _____ influx through voltage-gated channels

What effect does tachycardia have on the "click" onset time of the MVP murmur? _____