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| Capillary Permeability Microvascular Permeability | Permeability, Capillary | Permeability, Microvascular | Vascular Permeability | Capillary Permeabilities | Microvascular Permeabilities | Permeabilities, Capillary | Permeabilities, Microvascular Property of blood capillary walls that allows for the selective exchange of substances. Small lipid-soluble molecules such as carbon dioxide and oxygen move freely by diffusion. Water and water-soluble molecules cannot pass through the endothelial walls and are dependent on microscopic pores. These pores show narrow areas (tight junctions) which may limit large molecule movement. |