Lecture 4- principles of gas exchange Flashcards Preview

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Flashcards in Lecture 4- principles of gas exchange Deck (6)
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1
Q

what is the equation for rate of diffusion

A

surface area* pressure gradient

2
Q

define the pressure gradient

A

difference in partial pressures of the respective gases in alveolus and blood

3
Q

what is Dalton’s law?

A

partial pressure of a gas in a gas mixture = total pressure * fractional concentration of the gas

4
Q

In a solution of low solubility is the PP high or low?

A

high

5
Q

in a solution of high solubility is the PP high or low?

A

low

6
Q

What is the equation for oxygen diffusing capacity

A

oxygen uptake/ (alveolar PO2- mean pulmonary capillary PO2)