Скачать или смотреть Mandatory Lesson For Paramedics

The heart's electrical conduction system controls the heartbeat by generating and transmitting electrical signals that trigger the heart's muscle contractions. This system includes the sinoatrial (SA) node, which acts as the heart's natural pacemaker by initiating each heartbeat. The signal then travels through the atria, causing them to contract, and reaches the atrioventricular (AV) node, where it pauses briefly before continuing down the bundle of His and into the Purkinje fibers. This coordinated sequence ensures that the ventricles contract in a synchronized manner, pumping blood effectively throughout the body.

Be great,

Evan, The Paramedic Coach

#cardiology #paramedics #medical