Cardiac cycle — Flashcards

The normal heart sound _____ is loudest at the left upper sternal border

The increase in atrial pressure caused by atrial systole appears on the venous pulse curve as the _____ wave

How does ventricular volume change during atrial systole?_____

How does aortic pressure change during rapid ventricular ejection?_____

The calcium channels that open during the plateau phase (myocardial action potential) are _____-type channels

Phase 4 of the SA node action potential is caused by a slow, mixed Na+/K+ inward current via _____ channels

What phase of the cardiac cycle begins during the QRS complex on ECG?_____

How does ventricular pressure change during isovolumetric relaxation?_____

The _____ refractory period refers to the period in which a second action potential is possible, but requires a greater-than-normal stimulus

The heart sound _____ may be audible during isovolumetric relaxation