Cardiovascular System — Flashcards

The pulmonary circulation is normally characterized as a _____ resistance, high compliance system (low or high)

_____ splitting is heard in conditions that delay aortic valve closure

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

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

Increased _____ results in an increased width on a pressure-volume loop curve

Bradykinin causes arteriolar _____ and venous constriction

Closure of the ductus arteriosus occurs in response to increased _____ and decreased PGE (from respiration and placental separation, respectively)

ECF volume _____ produces a(n) decrease in capillary hydrostatic pressure (Pc)

AV shunts _____ preload and decrease afterload

Phase 2 of the myocardial action potential (plateau) is caused by a balance of _____ efflux and Ca2+ influx through voltage-gated channels