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Hemodynamics and Fick's Law Quiz

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Questions and Answers

What is the relationship between blood flow and the radius of an arteriole according to the information provided?

Exponentially proportional (correct)

No relationship

Inversely proportional

Directly proportional

Which factor controls the diameter of blood vessels, leading to vasoconstriction or vasodilation?

Blood pressure

Heart rate

Sympathetic tone (correct)

Parasympathetic tone

In Fick’s Law of diffusion, what does DC represent?

Density of gas

Diameter of vessel

Diffusion coefficient (correct)

Distance of diffusion

During low-intensity exercise, why does tidal volume increase according to the information provided?

To prevent acidosis by expiring CO2 Signup and view all the answers

What does alveolar ventilation (VA) represent?

Volume of air that reaches the lungs per minute Signup and view all the answers

During high-intensity exercise, why does breathing frequency increase based on the information provided?

Because of an increase in heart rate and metabolites buildup Signup and view all the answers

What is the formula for alveolar ventilation (VA)?

VA = frequency x tidal volume - 0.15 Signup and view all the answers

What does the radius of a blood vessel have a direct relationship with?

Blood flow Signup and view all the answers

Why is left ventricular pressure-volume loops considered a gold standard in monitoring cardiovascular disease?

Because LV increases blood volume during exercise Signup and view all the answers

What is the primary factor affecting resistance to flow through a blood vessel?

Vessel radius Signup and view all the answers

What happens to blood flow when there is vasoconstriction?

Blood flow decreases Signup and view all the answers

How does preload affect stroke volume?

Increased preload leads to increased stroke volume Signup and view all the answers

Hemodynamics and Fick's Law Quiz

Choose a study mode

Podcast

Questions and Answers

What is the relationship between blood flow and the radius of an arteriole according to the information provided?

Which factor controls the diameter of blood vessels, leading to vasoconstriction or vasodilation?

In Fick’s Law of diffusion, what does DC represent?

During low-intensity exercise, why does tidal volume increase according to the information provided?

What does alveolar ventilation (VA) represent?

During high-intensity exercise, why does breathing frequency increase based on the information provided?

What is the formula for alveolar ventilation (VA)?

What does the radius of a blood vessel have a direct relationship with?

Why is left ventricular pressure-volume loops considered a gold standard in monitoring cardiovascular disease?

What is the primary factor affecting resistance to flow through a blood vessel?

What happens to blood flow when there is vasoconstriction?

How does preload affect stroke volume?

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