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Oxygenation (Work of Breathing: effort required to expand and contract the…
Oxygenation
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Ventilation
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Phrenic nerve: C4: Rate, Depth and Rhythm
Regulated by changes in CO2, O2, H+(pH)
Diffusion
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Organs, nerves CNS), muscles must be intact
Increased Membrane Thickness: Decreases diffusion: Pulmonary edema, infiltrates, effusion.
Chromic Diseases: Emphysema, Acute Diseases (pneumothorax) and Surgical processes (lobectomy): Decrease surface area
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Perfusion
CV pumps blood to body, returns deoxygenated blood to lungs
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