| http://www.w3.org/ns/prov#value | - Surfactant is a fluid secreted by aveolar cells that decrease surface tension and so allows alveoli to expand and decreases chances of alveoli collapse --any surfactant breaks up hydrogen bonds in water molecules Respiratory Distress Syndrome is when not enough surfactant is produced ??? alveoli collapse due to ??? resistance to inspiration Pneumothorax = air in pleural cavity --lungs recoil and c
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