Cardiovascular System — Flashcards

Isovolumetric _____ corresponds to the end of the T wave on ECG

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

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

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

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

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)

Activation of _____ adrenergic receptors on the SA node causes increased heart rate

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

AV shunts _____ preload and decrease afterload