Podcast
Questions and Answers
Which of the following is the primary function of the cardiovascular system?
Which of the following is the primary function of the cardiovascular system?
- To maintain acid-base balance
- To regulate immune function
- To deliver oxygen and nutrients, and remove carbon dioxide and waste (correct)
- To transport hormones and other molecules
What is the role of the AV node in the cardiac conduction system?
What is the role of the AV node in the cardiac conduction system?
- It initiates the contraction signal
- It spreads the electrical signal throughout the ventricles
- It relays the signal to the ventricles after a delay (correct)
- It generates the intrinsic heart rate of 100 beats per minute
How does endurance training affect resting heart rate?
How does endurance training affect resting heart rate?
- It decreases resting heart rate (correct)
- It increases resting heart rate only in elite endurance athletes
- It has no effect on resting heart rate
- It increases resting heart rate
Which of the following is a type of cardiac arrhythmia?
Which of the following is a type of cardiac arrhythmia?
What is the purpose of the ECG (electrocardiogram) recording?
What is the purpose of the ECG (electrocardiogram) recording?
What is the role of the sympathetic nervous system in the control of heart activity?
What is the role of the sympathetic nervous system in the control of heart activity?
What is the role of the parasympathetic nervous system in the control of heart activity?
What is the role of the parasympathetic nervous system in the control of heart activity?
What is the cause of ventricular fibrillation?
What is the cause of ventricular fibrillation?
What is the function of the cardiac conduction system?
What is the function of the cardiac conduction system?
What is the role of the SA node in the cardiac conduction system?
What is the role of the SA node in the cardiac conduction system?
What term refers to the volume of blood pumped in one heartbeat?
What term refers to the volume of blood pumped in one heartbeat?
During which phase of the cardiac cycle do the atrioventricular valves close and the semilunar valves open?
During which phase of the cardiac cycle do the atrioventricular valves close and the semilunar valves open?
What is the term used to describe three or more consecutive premature ventricular contractions that compromise pumping capacity?
What is the term used to describe three or more consecutive premature ventricular contractions that compromise pumping capacity?
Which event occurs during the Diastole phase of the cardiac cycle?
Which event occurs during the Diastole phase of the cardiac cycle?
Ejection fraction is calculated as:
Ejection fraction is calculated as:
Ventricular fibrillation results in:
Ventricular fibrillation results in:
