Podcast
Questions and Answers
Which physiological variable reflects the degree of distension of the circulation with blood?
Which physiological variable reflects the degree of distension of the circulation with blood?
- Mean systemic filling pressure (MSFP) (correct)
- Venous resistance
- Right atrial pressure
- Cardiac output
What is the volume of blood that flows back to the heart per minute known as?
What is the volume of blood that flows back to the heart per minute known as?
- Venous resistance
- Cardiac output (correct)
- Arterial return
- Venous pressure
What determines the interaction between mean systemic filling pressure (MSFP), right atrial pressure (RAP), and resistance to venous return (RVR)?
What determines the interaction between mean systemic filling pressure (MSFP), right atrial pressure (RAP), and resistance to venous return (RVR)?
- The venous return curve
- Cardiac output
- Pressure gradient for venous return (correct)
- The pressure gradient for arterial return
What is the pressure that drives the venous return?
What is the pressure that drives the venous return?
What happens to venous return if the right atrial pressure is high?
What happens to venous return if the right atrial pressure is high?
What is the equation for venous return according to Ohm's law as provided in the text?
What is the equation for venous return according to Ohm's law as provided in the text?
Which of the following is NOT a physiological variable that determines venous return?
Which of the following is NOT a physiological variable that determines venous return?
What does the resistance to venous return (RVR) represent?
What does the resistance to venous return (RVR) represent?
What happens to the flow of venous blood back to the heart if the mean systemic filling pressure is increased?
What happens to the flow of venous blood back to the heart if the mean systemic filling pressure is increased?
Under normal conditions, what is the relationship between venous return and cardiac output?
Under normal conditions, what is the relationship between venous return and cardiac output?
What is the effect of increased resistance to venous return on the flow of venous blood back to the heart?
What is the effect of increased resistance to venous return on the flow of venous blood back to the heart?
What is the purpose of the venous return curve?
What is the purpose of the venous return curve?
What is the result of a high right atrial pressure on the flow of venous blood back to the heart?
What is the result of a high right atrial pressure on the flow of venous blood back to the heart?
What is the relationship between the pressure gradient for venous return and the flow of venous blood back to the heart?
What is the relationship between the pressure gradient for venous return and the flow of venous blood back to the heart?
What is the net effect of an increase in mean systemic filling pressure and a decrease in right atrial pressure on the flow of venous blood back to the heart?
What is the net effect of an increase in mean systemic filling pressure and a decrease in right atrial pressure on the flow of venous blood back to the heart?
What is the role of Ohm's law in the regulation of venous return?
What is the role of Ohm's law in the regulation of venous return?
