Expiration
Encyclopedia : E : EX : EXP : Expiration
In respiration, expiration is initiated by a decrease in volume and positive pressure exerted upon the intrapleural space upon diaphragm relaxation. The positive pressure generated, relative to atmospheric pressure, allows airflow from the alveoli to the mouth and outside air. Expiration has a complementary relationship to inspiration, the cycling between these two efforst define respiration.
Expiration (2003) is an independent feature film directed by Gavin Heffernan, and winner of the Grand Jury Prize and Best Film at the Canadian Filmmakers' Festival.
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