Alveolo-capillary exchange — process?
O2 enters blood; CO2 leaves blood.
Oxygen diffusion — direction?
From alveoli to blood and tissues.
CO2 diffusion — opposite?
From tissues to alveoli.
Gas diffusion — principle?
High to low partial pressure.
Dalton's Law — partials?
Each gas exerts independent partial pressure.
Oxygen transport — role?
Deliver O2 from lungs to tissues.
CO2 movement — driven by?
Partial pressure gradient.
Gas exchange zones?
Between alveolar air and venous blood.
Circulatory system — function?
Transport gases, maintain gradients.
Partial pressure — importance?
Drives diffusion, determines gas movement.
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1. What is alveolo-capillary gas exchange?
2. In which year did Dalton publish his Law of Partial Pressures?
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