syndrome
IRDS = administer surfactant use positive pressure with ARDS to fight inwards elastic recoil (hypoxia contributes to decr surfactant production/ activity), and opposes tendency for spontaneous atelectasis to occur
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Both bind to bacteria, viruses, mycobacteria, and fungi, and enhance phagocytosis and the release of mediators of the immune response by macrophages
surfactant A&D = innate immunity; tag pathogens for phagocytosis, enhance release of cytokines by macrophages surfactant B = helps arrange phospholipids into lamellar bodies; assist entry of phospholipids into surgace monolayer as alveolar expand during inspiration
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both lungs together are more compliant than either one alone; two alveoli in parallel are similarly more compliant than one alone
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