Podcast
Questions and Answers
During diastole in the cardiac cycle, what happens?
Where is the sinoatrial (SA) node located?
What is the function of the atrioventricular (AV) node in the heart's conduction system?
Which part of the heart acts as a 'pacemaker' due to its role in generating electrical impulses?
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What triggers the semilunar valves to shut during the cardiac cycle?
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What is the main role of the bundle branches in the heart's conduction system?
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Which component of the heart's electrical conduction system is responsible for depolarizing the atria?
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What is the main purpose of an electrocardiogram (ECG or EKG)?
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Which condition results in an irregular and often rapid heart rate, leading to decreased blood flow?
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What is the formula for cardiac output?
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Which of the following conditions can lead to abnormalities or damage to the heart's structure?
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What is the term used to describe a heart rate of more than 100 beats per minute?
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What is the formula for calculating cardiac output?
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How is cardiac output regulated in the body?
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What factors can lead to an increase in heart rate?
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How does digitalis work in congestive heart failure?
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What is the role of the parasympathetic nervous system in regulating heart rate?
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How often does the entire blood supply pass through the body?
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