INTRODUCTION: There are more than 356,000 out-of-hospital cardiac arrests annually, or 1,000 daily, in the United States with nearly 90% of them being fatal. 1 These statistics paint a grim image when ...
Your heart’s job is to keep your pulse steady to pump blood throughout your body. Sometimes your heart rate is slower when you’re relaxing, and sometimes it’s faster when you’re exercising or stressed ...
What Is the Heart Conduction System? The heart conduction system is made up of cells, nodes, and signals that help your heart to beat. In fact, the cardiac conduction system is responsible for our ...
The sinoatrial (SA) node is the natural pacemaker of the heart. It generates electrical impulses that cause the heart’s chambers to contract, setting the heart rate. The SA node typically generates 60 ...
To continue reading this content, please enable JavaScript in your browser settings and refresh this page. The heart is an incredible machine, pumping blood to fuel ...
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