EKG WRITTEN EXAM QUESTIONS & ANSWERS.

EKG WRITTEN EXAM QUESTIONS & ANSWERS. The fibrous sac covering the heart, which is in contact with the pleura is the : - CORRECT ANSWER pericardium The heart ventricle with the thicker myocardium.... - CORRECT ANSWER left The pulmonic and aortic valves open during systole or diastole? - CORRECT ANSWER systole The large blood vessel that returns unoxygenated blood from the head and neck to the right atrium is called... - CORRECT ANSWER superior vena cava The coronary sinus, which opens into the right atrium, allows return from which layer of the heart? - CORRECT ANSWER myocardium The saw tooth pattern is indicative of which rhythm? - CORRECT ANSWER atrial flutter The mitral valve is located between the... - CORRECT ANSWER left atrium and left ventricle This part of the conduction system of the heart is located at the superior portion of the inter ventricular septum and has the ability to function as a pacemaker with an intrinsic firing rate of 40-60 beats per minute. - CORRECT ANSWER bundle of his This represent the time it take for electrical impulses to travel from the atria to the AV node, bundle of his, bundle branches and to the purkinje fibers. - CORRECT ANSWER QT interval