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Respiratory Gases
Physio Final
8
Veterinary Medicine
Professional
12/03/2009

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Cards

Term
What is Dalton's Law of Partial Pressures?
Definition
  • The sum of the partial pressures is equal to the ambient pressure
  • Percent of the gas x ambient pressure (760 mmHg) = the partial pressure of the gas
Term
What is Henry's Law?
Definition
  • The mass (mL) of a gas that dissolves in a liquid at a given temperature is proportional to the partial pressure of the gas
  • CO2 has a higher solublity in water than O2
Term
How does the partial pressure of oxygen change from the air to the alveolus?
Definition
  • Decreases
Term
How does the partial pressure of CO2 change from air to alveolus?
Definition
  • Increases
Term
What gas has the greatest partial pressure?
Definition
  • Nitrogen
Term
What is the diffusion capactiy?
Definition
  • The amount of air that diffuses through a membrane per minute in 1 mmHg pressure gradient
  • Normal is 20
Term
What is Boyle's Law?
Definition
  • A fixed quantity of gas is inversely proportional to the pressure to which the gas is subjected
Term
What is Charle's Law?
Definition
  • At a constant pressure, the volume occupied by a fixed mass of gas varies in direct proportion to the absolute temperature
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