Anatomy and the ECG AES QUIZ with answers graded A+ 2023/2024

Anatomy and the ECG AES QUIZ How long does the average cardiac cycle last? - correct answer 0.8 seconds Which of the following is a common symptom of heart failure? - correct answer ...... What does electrocardiogram measure? - correct answer Heart function What is a heart attack? - correct answer When flow to the heart is blocked Which chamber of the heart receives deoxygenated blood from the body? - correct answer right atrium What is the purpose of the valves in the heart? - correct answer To keep the blood flowing in only one direction Which chamber of the heart contracts to send blood to the pulmonary artery and lungs ? - correct answer right ventricle Which layer of the heart contains a lubricating fluid that reduces friction as the heart beats? - correct answer Pericardium How many chambers does the heart have? - correct answer 4 (2 atria, 2 ventricles) When does cardiac arrest occur ? - correct answer When the heart stops beating unexpectedly Which of these terms refers to when the electrical impulse starts in the SA node and causes the atria to contract ? - correct answer atrial depolarization A reduction in blood flow to the heart is called________ - correct answer Myocardial ischemia Which of the following are groups at high risk for cardiac emergencies that may appear with atypical symptoms? - correct answer Women, elderly, diabetic Which wave of the ECG cycle shows repolarization? - correct answer T Which wave of the ECG cycle shows repolarization? - correct answer ...... Which of the following is true? - correct answer Electrical impulses in the heart cause the muscles to contract. Which of these tissues is known as the body's "natural pacemaker ?" - correct answer SA node Which component of the ECG cycle shows ventricular depolarization? - correct answer QRS The stiffening of blood vessels due to fatty plaque buildup is called________ - correct answer Atherosclerosis Where is the heart located? - correct answer In the left-side of the thoracic cavity Which layer of the heart is made of muscle tissue and pumps the blood through the system ? - correct answer myocardium Which wave of the ECG cycle shows atrial depolarization? - correct answer P What is the contraction phase of a heartbeat ? - correct answer systole