Sentences with phrase «branching air sacs»
«The heart is just a pump,» says William Federspiel of the University of Pittsburgh, whereas the lungs contain a complex network of branching air sacs permitting gases to diffuse in and out of the blood.
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Lungs: Your babies» lungs are developing «branches» of the respiratory «tree» as well as cells that produce surfactant, a substance that helps air sacs inflate easily.
Tracheal branch repopulation precedes induction of the Drosophila dorsal air sac primordium.