Cardiac Cycle Quiz

diastole

tricuspid

sinoatrial (SAN)

<p>systole</p> Signup and view all the answers

<p>Purkinje</p> Signup and view all the answers

<p>pulmonary artery</p> Signup and view all the answers

<p>diastole</p> Signup and view all the answers

<p>backflow</p> Signup and view all the answers

<p>atria</p> Signup and view all the answers

<p>repeats</p> Signup and view all the answers

The phase where the heart's ventricles relax and fill with blood.

The valves that open and close to allow blood flow between the atria and ventricles.

The valves that prevent backflow of blood from the arteries back into the ventricles.

The powerful ejection of blood from the ventricles into the arteries.

The continuous, repeating sequence of events that makes the heart pump blood.

The heart's period of contraction, where it pumps blood out.

The natural pacemaker of the heart, located in the right atrium. It generates electrical impulses to regulate heart rate.

A delay in the electrical signal at the AV node allows the ventricles to fill with blood before contracting.

Valves that open to allow blood flow from the atria to the ventricles during systole, and close to prevent backflow.