Capillary Permeability
The property of blood capillary ENDOTHELIUM that allows for the selective exchange of substances between the blood and surrounding tissues and through membranous barriers such as the BLOOD-AIR BARRIER; BLOOD-AQUEOUS BARRIER; BLOOD-BRAIN BARRIER; BLOOD-NERVE BARRIER; BLOOD-RETINAL BARRIER; and BLOOD-TESTIS BARRIER. 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.
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Subheadings:
Tree Number(s): G03.143.330, G09.330.165
MeSH Unique ID: D002199
Entry Terms:
- Permeability, Capillary
- Capillary Permeabilities
- Permeabilities, Capillary
- Permeability, Microvascular
- Microvascular Permeability
- Microvascular Permeabilities
- Permeabilities, Microvascular
- Vascular Permeability
- Permeabilities, Vascular
- Permeability, Vascular
- Vascular Permeabilities
See Also: