Cardiac cycle — Flashcards

Which phase of the cardiac cycle (systole or diastole) is preferentially shortened with increased heart rate? _____

The a wave on jugular venous pulse corresponds to _____

The v wave on jugular venous pulse corresponds to _____

Activation of M2 receptors in the SA node produces a decrease in _____ channel activity, which decreases the rate of phase 4 depolarization and thus heart rate

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

How does the rate of upstroke in a SA node action potential compare to that of a myocardial action potential?_____

Coronary blood flow peaks in early _____ (systole/diastole)

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

In _____ splitting, the P2 sound occurs before a delayed A2 sound

During systole, is there relatively constant blood flow to the right ventricular myocardium?_____