Definition for Positive pressure filling
From Biology Forums Dictionary
Revision as of 20:16, 30 January 2011 by Bio man (Talk | contribs) (Created page with "The method by which amphibians ventilate their lungs—the animals gulp air and force it under pressure into the lungs, as if inflating a balloon.")
The method by which amphibians ventilate their lungs—the animals gulp air and force it under pressure into the lungs, as if inflating a balloon.
