Cardiac Function Quiz
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Questions and Answers

Which of the following adaptations occurs with training?

  • Increase in stored ATP and PCr (correct)
  • Decrease in mitochondrial VO2max
  • Decrease in ATP production from fuels
  • Increase in O2 deficit and EPOC

What is the net ATP produced from one molecule of glucose during Beta-oxidation?

  • -2 ATP
  • 8 ATP
  • 24 ATP (correct)
  • 4 ATP

Which of the following statements about detaining is true?

  • Detraining leads to the greatest improvement with training
  • Detraining leads to an increase in VO2max
  • Aerobic loss is greater than anaerobic loss (correct)
  • Detraining has no effect on aerobic and anaerobic capacity

Which of the following equations represents the ejection fraction (EF)?

<p>$EF = rac{SV}{EDV}$ (A)</p> Signup and view all the answers

What is the average ejection fraction (EF)?

<p>54% (D)</p> Signup and view all the answers

Which of the following is NOT a factor that can cause a decrease in stroke volume (SV) during exercise?

<p>Increased heart rate (C)</p> Signup and view all the answers

What is the formula for calculating the heart rate-pressure product (RPP)?

<p>$RPP = SBP \times HR$ (B)</p> Signup and view all the answers

Which of the following factors contributes to an increase in stroke volume?

<p>Preload (B)</p> Signup and view all the answers

What is the formula for calculating cardiac output?

<p>Q = SV x HR (B)</p> Signup and view all the answers

Which phase of the cardiac cycle is characterized by the heart being contracted and blood being pumped out of the ventricles?

<p>Systole (B)</p> Signup and view all the answers

What is the main function of the respiratory pump in the cardiovascular system?

<p>To increase venous return (B)</p> Signup and view all the answers

According to Poiseuille's Law, which factor has the greatest influence on blood flow rate?

<p>Vessel diameter (C)</p> Signup and view all the answers

Which of the following statements about resistance and flow is true?

<p>If pressure increases, resistance will increase. (B)</p> Signup and view all the answers

Which of the following factors contribute to vasodilation during exercise?

<p>Sympathetic nervous system (B)</p> Signup and view all the answers

What is the relationship between shear stress and viscosity?

<p>Shear stress and viscosity are inversely proportional. (D)</p> Signup and view all the answers

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