Podcast
Questions and Answers
Which phase of the cardiac cycle is characterized by the heart being contracted and blood being pumped out of the ventricles?
Which phase of the cardiac cycle is characterized by the heart being contracted and blood being pumped out of the ventricles?
- End-systolic volume (ESV)
- Diastole
- End-diastolic volume (EDV)
- Systole (correct)
What is the equation for stroke volume (SV)?
What is the equation for stroke volume (SV)?
- SV = EDV / ESV
- SV = ESV - EDV
- SV = EDV + ESV
- SV = EDV - ESV (correct)
What is the average stroke volume per beat?
What is the average stroke volume per beat?
- 70 mL (correct)
- 20 mL
- 110 mL
- 90 mL
Which factor affects stroke volume by referring to the degree of stretching experienced by the heart muscle cells during diastole?
Which factor affects stroke volume by referring to the degree of stretching experienced by the heart muscle cells during diastole?
Which factor affects the amount of blood returning to the heart and is influenced by gravity?
Which factor affects the amount of blood returning to the heart and is influenced by gravity?
Which factor affects the amount of blood returning to the heart and is influenced by the muscle pump when transitioning from standing to running?
Which factor affects the amount of blood returning to the heart and is influenced by the muscle pump when transitioning from standing to running?
What happens to the stroke volume as the end-diastolic volume (EDV) increases and the end-systolic volume (ESV) decreases?
What happens to the stroke volume as the end-diastolic volume (EDV) increases and the end-systolic volume (ESV) decreases?
Which of the following is a factor that can cause a decrease in venous return during exercise?
Which of the following is a factor that can cause a decrease in venous return during exercise?
What is the formula for calculating ejection fraction?
What is the formula for calculating ejection fraction?
What is the main role of the parasympathetic nervous system in heart rate control?
What is the main role of the parasympathetic nervous system in heart rate control?
What is the term for the reflex that leads to an increase in heart rate due to stretching of atrial cells?
What is the term for the reflex that leads to an increase in heart rate due to stretching of atrial cells?
What is the equation for calculating cardiac output (Q)?
What is the equation for calculating cardiac output (Q)?
What is the main reason for an increase in systolic blood pressure during exercise?
What is the main reason for an increase in systolic blood pressure during exercise?
What is the formula for calculating mean arterial pressure (MAP)?
What is the formula for calculating mean arterial pressure (MAP)?
According to Poiseuille's Law, which factor has the greatest influence on blood flow rate in a vessel?
According to Poiseuille's Law, which factor has the greatest influence on blood flow rate in a vessel?
What happens to resistance when flow decreases?
What happens to resistance when flow decreases?
Which of the following is NOT a factor that can influence vasodilation?
Which of the following is NOT a factor that can influence vasodilation?
What is the relationship between shear stress and viscosity?
What is the relationship between shear stress and viscosity?
During exercise, what happens to blood flow distribution?
During exercise, what happens to blood flow distribution?
Which of the following is true about blood flow distribution during rest?
Which of the following is true about blood flow distribution during rest?
Which body region experiences a higher increase in cardiac output during exercise?
Which body region experiences a higher increase in cardiac output during exercise?
Which of the following is the equation for cardiac output (Q)?
Which of the following is the equation for cardiac output (Q)?
Which of the following statements about the left ventricle is true?
Which of the following statements about the left ventricle is true?
Which of the following statements about cardiac hypertrophy is true?
Which of the following statements about cardiac hypertrophy is true?
Which of the following is true about stroke volume (SV)?
Which of the following is true about stroke volume (SV)?
Which of the following statements about heart rate (HR) is true?
Which of the following statements about heart rate (HR) is true?
What is the equation for the change in volume (C) with respect to the change in pressure?
What is the equation for the change in volume (C) with respect to the change in pressure?
Which of the following statements about vasculature is true?
Which of the following statements about vasculature is true?
Which of the following statements about capillarization is true?
Which of the following statements about capillarization is true?
Which of the following statements about blood volume is true?
Which of the following statements about blood volume is true?
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