UNDERSTANDING THE HEART'S ELECTRICAL CONDUCTION SYSTEM - QUIZ QUESTIONS
The Electrical Conduction System of the heart The SA (sinoatrial) node is the pacemaker of the heart and is part of the electrical conduction system. It is located in the upper part of the right atrium. When the SA node fires, the right and left atria contract simultaneously and blood is forced into the right and left ventricles. The electrical stimulus then travels to the AV ( atrio- ventricular) node which is located in the lower part of the right atrium. The AV node fires, causing the right and left ventricles to contract simultaneously. Scenario : Jim was admitted to the medical floor, with complaints of abdominal pain. The nurse arrives at his bedside and finds him unresponsive. She presses the code button, to alert the code team. She then begins CPR. What does CPR mean? CPR means Cardiopulmonary resuscitation. When the heart stops beating and there is no circulation of blood throughout the body, CPR is initiated. ...