Podcast
Questions and Answers
Which of the following is the primary mechanism by which the sympathetic nervous system increases heart rate?
Which of the following is the primary mechanism by which the sympathetic nervous system increases heart rate?
- Decreasing parasympathetic stimulation
- Increasing afterload
- Increasing stroke volume
- Increasing cAMP in pacemaker cells (correct)
During exercise, which of the following is the easiest way to increase cardiac output?
During exercise, which of the following is the easiest way to increase cardiac output?
- Increasing stroke volume (correct)
- Increasing heart rate
- Increasing afterload
- Increasing preload
Which of the following is true about the changes in cardiovascular function during exercise?
Which of the following is true about the changes in cardiovascular function during exercise?
- Systole increases while diastole stays the same (correct)
- Systole and diastole both increase
- Systole increases while diastole decreases
- Systole decreases while diastole increases
What is the primary effect of gravity on blood flow when going from sitting to standing?
What is the primary effect of gravity on blood flow when going from sitting to standing?
Which of the following organs or tissues has decreased cardiac output during exercise?
Which of the following organs or tissues has decreased cardiac output during exercise?
How does exercise training affect resting heart rate and stroke volume?
How does exercise training affect resting heart rate and stroke volume?
What is the effect of the parasympathetic nervous system on heart rate?
What is the effect of the parasympathetic nervous system on heart rate?
What is the primary effect of increased preload on stroke volume?
What is the primary effect of increased preload on stroke volume?
Which of the following is a characteristic of right-sided heart failure?
Which of the following is a characteristic of right-sided heart failure?
What is the primary effect of increased afterload on stroke volume?
What is the primary effect of increased afterload on stroke volume?
What is the primary effect of decreased contractility on ejection fraction?
What is the primary effect of decreased contractility on ejection fraction?
What is the primary effect of increased heart rate on cardiac output?
What is the primary effect of increased heart rate on cardiac output?
Which of the following statements about preload is true?
Which of the following statements about preload is true?
What is the primary factor that determines afterload?
What is the primary factor that determines afterload?
If stroke volume increases, what happens to cardiac output?
If stroke volume increases, what happens to cardiac output?
What is the relationship between preload and stroke volume?
What is the relationship between preload and stroke volume?
What is the normal ejection fraction for a healthy heart?
What is the normal ejection fraction for a healthy heart?
Which of the following factors directly affects cardiac output?
Which of the following factors directly affects cardiac output?
If end systolic volume (ESV) decreases, what happens to stroke volume?
If end systolic volume (ESV) decreases, what happens to stroke volume?
Which of the following factors increases venous return (preload)?
Which of the following factors increases venous return (preload)?
What is the relationship between contractility and end systolic volume (ESV)?
What is the relationship between contractility and end systolic volume (ESV)?
If the ejection fraction remains constant at 60% during exercise, what happens to end diastolic volume (EDV)?
If the ejection fraction remains constant at 60% during exercise, what happens to end diastolic volume (EDV)?
What is the primary effect of gravity on blood flow when transitioning from sitting to standing?
What is the primary effect of gravity on blood flow when transitioning from sitting to standing?
How does exercise influence stroke volume?
How does exercise influence stroke volume?
Which factor plays a crucial role in regulating stroke volume during exercise?
Which factor plays a crucial role in regulating stroke volume during exercise?
What is the primary effect of the parasympathetic nervous system on heart rate?
What is the primary effect of the parasympathetic nervous system on heart rate?
How does sympathetic stimulation affect cardiac output during exercise?
How does sympathetic stimulation affect cardiac output during exercise?
Which statement best describes the impact of increased afterload on stroke volume?
Which statement best describes the impact of increased afterload on stroke volume?
What is the primary effect of going from a sitting to a standing position on blood flow to the brain?
What is the primary effect of going from a sitting to a standing position on blood flow to the brain?
How does exercise training affect resting heart rate and stroke volume?
How does exercise training affect resting heart rate and stroke volume?
During exercise, which of the following is the easiest way to increase cardiac output?
During exercise, which of the following is the easiest way to increase cardiac output?
What is the primary effect of the parasympathetic nervous system on heart rate?
What is the primary effect of the parasympathetic nervous system on heart rate?
Which of the following organs or tissues experiences decreased cardiac output during exercise?
Which of the following organs or tissues experiences decreased cardiac output during exercise?
What is the primary effect of going from a sitting to a standing position on blood flow?
What is the primary effect of going from a sitting to a standing position on blood flow?
During aerobic exercise, what is the primary mechanism for increasing cardiac output?
During aerobic exercise, what is the primary mechanism for increasing cardiac output?
What is the primary effect of the parasympathetic nervous system on the cardiovascular system?
What is the primary effect of the parasympathetic nervous system on the cardiovascular system?
Which of the following factors primarily determines afterload on the heart?
Which of the following factors primarily determines afterload on the heart?
What is the primary effect of the Frank-Starling mechanism on stroke volume?
What is the primary effect of the Frank-Starling mechanism on stroke volume?
During aerobic exercise, what is the primary effect on stroke volume?
During aerobic exercise, what is the primary effect on stroke volume?
What is the primary mechanism by which the sympathetic nervous system increases heart rate during exercise?
What is the primary mechanism by which the sympathetic nervous system increases heart rate during exercise?
What is the primary function of the respiratory pump in relation to cardiovascular function?
What is the primary function of the respiratory pump in relation to cardiovascular function?
What is the primary effect of the skeletal muscle pump on cardiovascular function during exercise?
What is the primary effect of the skeletal muscle pump on cardiovascular function during exercise?
What is the normal range for ejection fraction in a healthy heart?
What is the normal range for ejection fraction in a healthy heart?
