Canadian Medical Guide > Anatomy > Respiratory System > Lung > Pulmonary Alveoli > Blood-Air Barrier Terms and Definitions




Blood-Air Barrier

Medical Definition: The barrier between capillary blood and alveolar air comprising the alveolar EPITHELIUM and capillary ENDOTHELIUM with their adherent BASEMENT MEMBRANE and EPITHELIAL CELL cytoplasm. PULMONARY GAS EXCHANGE occurs across this membrane.
Guide Notes: coord IM with endogenous substance /metab (IM) or exogenous substance /pharmacokin (IM)
Previously Indexed: Capillaries (1969-1989),Pulmonary Alveoli (1969-1989)

Blood-Air Barrier Medical Definitions and Terms

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