BiologyFlashCards

Atrial Fibrilation: an irregular and often rapid heart rate causing poor blood flow. Atria are mis-coordinated with Ventricles.

Occurs when electrical impulses mis-fire, causing the heart to beat too fast, too slow, or irregularly. Often harmless.

The heart's two upper chambers

American Heart Association

When normal sinus beats alternate with premature ventricular beats

Occurs when blood flow to the heart is decreased by a partial or complete blockage of an artery

Premature Ventricular Contraction

The group of cells where the heart's electrical signal begins

A heartbeat that is too fast.

A cardiac arrhythmia characterized by the occurrence of three heartbeats in a repeating pattern: two normal beats coupled to an ectopic beat, or two ectopic beats coupled to a normal beat

The heart's two lower chambers

Ventricular Flutter