Understanding How A Pacemaker Works To Prompt A Heartbeat Your heart has four chambers (two atria and two ventricles) which contract as the result of electrical impulses. The impulses are generated in your sinus node at the top of your right atrium. They travel through the cells of the atria, causing them to contract and [...]

Continue reading " Understanding How A Pacemaker Works To Prompt A Heartbeat "

How A Pacemaker Can Keep A Heart Running Smoothly When your heart muscle is working properly, it can continue beating without mechanical intervention. The sinus node generates an electrical current which travels from the top of the muscle downward. As the current travels, it triggers contractions in the muscle’s chambers which pump blood. When the [...]

Continue reading " How A Pacemaker Can Keep A Heart Running Smoothly "