12 Questions
What is the relationship between blood flow and the radius of an arteriole according to the information provided?
Exponentially proportional
Which factor controls the diameter of blood vessels, leading to vasoconstriction or vasodilation?
Sympathetic tone
In Fick’s Law of diffusion, what does DC represent?
Diffusion coefficient
During low-intensity exercise, why does tidal volume increase according to the information provided?
To prevent acidosis by expiring CO2
What does alveolar ventilation (VA) represent?
Volume of air that reaches the lungs per minute
During high-intensity exercise, why does breathing frequency increase based on the information provided?
Because of an increase in heart rate and metabolites buildup
What is the formula for alveolar ventilation (VA)?
VA = frequency x tidal volume - 0.15
What does the radius of a blood vessel have a direct relationship with?
Blood flow
Why is left ventricular pressure-volume loops considered a gold standard in monitoring cardiovascular disease?
Because LV increases blood volume during exercise
What is the primary factor affecting resistance to flow through a blood vessel?
Vessel radius
What happens to blood flow when there is vasoconstriction?
Blood flow decreases
How does preload affect stroke volume?
Increased preload leads to increased stroke volume
Test your knowledge of hemodynamics and Fick's Law of diffusion with this quiz. Understand the relationship between variables like cardiac output, stroke volume, and blood flow. Explore how factors like vessel radius and solubility impact gas exchange in the body.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
