red blood cells


a: Red blood cells ~
b: oxygen barges


They move oxygen around the body the way barges moves stuff up and down the Mississippi river. Of course the red blood cells can only carry 4 oxygen molecules/hemoglobin molecule. But there are many of these little boats, about 45% of the blood, so the system works pretty well.

Writer: Not Stated
Where: Reference Link Has Evaporated
Date: Dec 6 2014 3:38 PM

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