Gas Exchange and Transport

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Gas Exchange and Transport
Gas Exchange and TransportIn the next section of this book, we will consider how oxygen moves from ambient air into the tissues of the body. Diffusion of a gas occurs when there is a net movement of molecules from an area with a high partial pressure to an area with a lower partial pressure. Only 50 years ago, it was still believed by some scientists that the lung secreted oxygen into the capillaries. That would mean that oxygen would move from the atmosphere to a relatively higher concentration inside the lung by an active process. More accurate measurements have now shown that gas transport across the alveolar wall is a passive process.
Diffusion Gases like oxygen and CO2…
Lee Waite, Ph.D., P.E.; Jerry Fine, Ph.D.: Applied Biofluid Mechanics, Second Edition. Gas Exchange and Transport, Chapter (McGraw-Hill Professional, 2017), AccessEngineering Export