Cardiovascular System — Flashcards

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

The _____ valve closes slightly before the tricuspid valve, thus heart sound S1 may be split

During the early stages of exercise, cardiac output is maintained by increased _____ and stroke volume

Phase _____ of the myocardial action potential is characterized by initial repolarization

A negative inotropic agent causes the cardiac output to _____ and right atrial pressure to increase

The Frank-Starling relationship states that the force of _____ is proportional to the end-diastolic length of the cardiac muscle fiber

An increase in mean systemic pressure is reflected in a shift of the _____ function curve to the right

The most important local metabolic factors for coronary circulation are _____ and adenosine (vasodilatory)

Resistance is _____ proportional to the length of the blood vessel

Relaxation of a myocardial cell occurs when:- Ca2+ is reaccumulated in the sarcoplasmic reticulum by the action of _____- Ca2+ is pumped out of the cell by the Na+/Ca2+ exchanger (NCX)