Podcast
Questions and Answers
Which type of blood vessels are more distensible than arteries?
Which type of blood vessels are more distensible than arteries?
- Venules
- Arterioles
- Veins (correct)
- Capillaries
Where is the majority of the total blood volume stored?
Where is the majority of the total blood volume stored?
- Venules
- Capillaries
- Veins (correct)
- Arteries
What is the approximate value of central venous pressure?
What is the approximate value of central venous pressure?
- 90 mmHg
- 120 mmHg
- 12 mmHg (correct)
- 50 mmHg
Which part of the nervous system innervates both veins and arteries?
Which part of the nervous system innervates both veins and arteries?
What effect does sympathetic stimulation have on the compliance and blood volume of veins?
What effect does sympathetic stimulation have on the compliance and blood volume of veins?
What determines venous pressure in the body?
What determines venous pressure in the body?
What causes distention of the compliant vessels in the cardiovascular system?
What causes distention of the compliant vessels in the cardiovascular system?
What is the role of venous valves in venous return?
What is the role of venous valves in venous return?
What happens to the stroke volume of the left ventricle during expiration?
What happens to the stroke volume of the left ventricle during expiration?
Which of the following is true about sympathetic stimulation of the veins?
Which of the following is true about sympathetic stimulation of the veins?
What is the main factor that determines the pressure within the cardiovascular system?
What is the main factor that determines the pressure within the cardiovascular system?
How can the pressure produced by the weight of the blood be calculated?
How can the pressure produced by the weight of the blood be calculated?
How does gravity affect venous return in the cardiovascular system?
How does gravity affect venous return in the cardiovascular system?
What is the role of venous valves in venous return?
What is the role of venous valves in venous return?
What effect does the intermittent contraction of muscles have on venous return?
What effect does the intermittent contraction of muscles have on venous return?
What happens to the stroke volume of the right ventricle during expiration?
What happens to the stroke volume of the right ventricle during expiration?
What effect does sympathetic stimulation have on the compliance and blood volume of veins?
What effect does sympathetic stimulation have on the compliance and blood volume of veins?
During inspiration, what happens to the preload of the right ventricle?
During inspiration, what happens to the preload of the right ventricle?
What happens to the stroke volume of the left ventricle during expiration?
What happens to the stroke volume of the left ventricle during expiration?
What effect does the increase in intrathoracic pressure during expiration have on the preload of the right ventricle?
What effect does the increase in intrathoracic pressure during expiration have on the preload of the right ventricle?
An experiemnt in which a real ventricle is placed in the circulation and a syringe is used to regulate CVP. Which variable is the dependent variable in the relationship between cardiac output (CO) and central venous pressure (CVP)?
An experiemnt in which a real ventricle is placed in the circulation and a syringe is used to regulate CVP. Which variable is the dependent variable in the relationship between cardiac output (CO) and central venous pressure (CVP)?
What happens to CVP when CO increases?
What happens to CVP when CO increases?
What happens to CO when CVP increases?
What happens to CO when CVP increases?
What is the primary mechanism for changes in cardiac output?
What is the primary mechanism for changes in cardiac output?
What is the mean blood pressure (MBP)?
What is the mean blood pressure (MBP)?
What increases mean systemic pressure?
What increases mean systemic pressure?
What decreases mean systemic pressure?
What decreases mean systemic pressure?
What determines the slope of the venous return curve?
What determines the slope of the venous return curve?
What does an up rotation of the venous return curve indicate?
What does an up rotation of the venous return curve indicate?
What does a down rotation of the venous return curve indicate?
What does a down rotation of the venous return curve indicate?
What happens to venous return when TPR is decreased for a given right atrial pressure?
What happens to venous return when TPR is decreased for a given right atrial pressure?
Which of the following statements is true about venous compliance?
Which of the following statements is true about venous compliance?
What happens to central venous pressure (CVP) when veins become stiffer?
What happens to central venous pressure (CVP) when veins become stiffer?
During respiratory inspiration, what happens to venous return?
During respiratory inspiration, what happens to venous return?
What is the relationship between venous return and cardiac output, IN A CLOSED CARDIOVASCULAR SYSTEM?
What is the relationship between venous return and cardiac output, IN A CLOSED CARDIOVASCULAR SYSTEM?
What is the mean circulatory pressure?
What is the mean circulatory pressure?
What drives blood flow from the aorta to the right ventricle?
What drives blood flow from the aorta to the right ventricle?
In an experiment where a real ventricle is placed in the circulation and central venous pressure (CVP) is regulated, what happens to cardiac output (CO)?
In an experiment where a real ventricle is placed in the circulation and central venous pressure (CVP) is regulated, what happens to cardiac output (CO)?
In an experiment where a mechanical pump is used to control cardiac output (CO) and central venous pressure (CVP) is measured, what happens to CVP?
In an experiment where a mechanical pump is used to control cardiac output (CO) and central venous pressure (CVP) is measured, what happens to CVP?
What effect does sympathetic stimulation have on the compliance and blood volume of veins?
What effect does sympathetic stimulation have on the compliance and blood volume of veins?
What happens to venous pressure when volume is removed from the venous vessels?
What happens to venous pressure when volume is removed from the venous vessels?
What is the equilibrium point in the cardiovascular system?
What is the equilibrium point in the cardiovascular system?
What happens to CVP after a transfusion?
What happens to CVP after a transfusion?
What is the net result of a transfusion?
What is the net result of a transfusion?
What effect does autotransfusion have on CVP (net)?
What effect does autotransfusion have on CVP (net)?
What primarily determines peripheral resistance (TPR)?
What primarily determines peripheral resistance (TPR)?
What happens when you have increased TPR?
What happens when you have increased TPR?
What happens to cardiac output (CO) when myocardial contractility increases?
What happens to cardiac output (CO) when myocardial contractility increases?
What can change cardiac output (CO)?
What can change cardiac output (CO)?
Which of the following is true about venous return and cardiac output in heart failure?
Which of the following is true about venous return and cardiac output in heart failure?
What happens to central venous pressure (CVP) in heart failure?
What happens to central venous pressure (CVP) in heart failure?
What is the relationship between end-diastolic volume (EDV) and force of contraction?
What is the relationship between end-diastolic volume (EDV) and force of contraction?
What is the compensatory mechanism for heart failure?
What is the compensatory mechanism for heart failure?
What effect does heart failure have on cardiac output?
What effect does heart failure have on cardiac output?
What is the effect of increased resting length of the cardiac muscle on force of contraction?
What is the effect of increased resting length of the cardiac muscle on force of contraction?
What is the effect of increased central venous pressure (CVP) on end-diastolic volume (EDV)?
What is the effect of increased central venous pressure (CVP) on end-diastolic volume (EDV)?
