Ch 18 Gaas Exchange & Transport

Pressure Gradient, Solubility, & Temperature

Gas diffusion is determined by

Cyanide

Can make cells of an organism unable to use oxygen, primarily through the inhibition of cytopchrome c oxidase

Causes of Low Alveolar PO2

Altitude

Decreased lung compliance

Increased airway resistance

Drug overdose

Plasma

Oxygen diffuses across alveolar epithelial cells and capillary endothelial cells to enter the