external respiration


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external respiration

[ek¦stərn·əl ‚res·pə′rā·shən]
(physiology)
The processes by which oxygen is carried into living cells from the outside environment and by which carbon dioxide is carried in the reverse direction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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