Let's understand how oxygen and carbon dioxide diffuse between the alveoli and the blood, and between the blood and the body tissues.
00:00 Introduction
01:04 Pressure gradient and diffusion of gases
02:42 Partial pressure
05:16 Partial pressures of gases inside alveoli
07:28 Partial pressures of gases in deoxygenated blood
07:49 Diffusion of gases between the alveoli and the blood
10:07 Diffusion of gases between the blood and the body tissues
11:36 Summary
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