Cardiovascular System — Flashcards

Phase 1 of the myocardial action potential is caused by inactivation of voltage-gated _____ channels and opening of voltage-gated K+ channels

The integrity of the _____ reflex can be tested with the Valsalva maneuver

In cardiac cells, the absolute refractory period begins with the _____ and ends after the plateau

Atrial _____ is preceded by the P wave on ECG, which marks depolarization of the atria

The property of elastic recoil is called _____ effect and is seen in large elastic vessels

A _____ inotropic agent causes the cardiac function curve to shift downwards

A hyperkinetic pulse is a rapidly rising pulse with high amplitude due to the rapid ejection of a _____ stroke volume against a decreased afterload

Phase 3 of the myocardial action potential is caused by massive efflux of _____ and closure of voltage-gated Ca2+ channels

Electromechanical systole is the time interval between _____ wave and second heart sound.

_____ splitting is heard in conditions that delay aortic valve closure