Why is ventricular fibrillation more serious than atrial fibrillation?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Why is ventricular fibrillation more serious than atrial fibrillation?

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Step 1: Introduction to ventricular fibrillation and atrial fibrillation

Ventricular fibrillation (VF ib) and atrial fibrillation (AF ib) are both types of irregular heart rhythms, but they occur in different parts of the heart and have vastly different implications for health. Atrial fibrillation is a condition where the upper chambers of the heart beat irregularly and often too quickly. Ventricular fibrillation happens when the lower chambers of the heart begin to quiver or flutter wildly instead of constricting properly.

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