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How does my heart beat?

ANSWER

The atria and ventricles work together, alternately contracting and relaxing to make the heart beat and pump blood. The electrical system of your heart is the power source that makes this possible.

Your heartbeat is triggered by electrical impulses that travel down a special pathway through your heart.

SOURCES:
The Food and Drug Administration.
The Merck Manual.

Reviewed by James Beckerman on February 4, 2021

SOURCES:
The Food and Drug Administration.
The Merck Manual.

Reviewed by James Beckerman on February 4, 2021

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