The blood–brain barrier (BBB) is a highly selective permeability barrier that separates the circulating blood from the brain extracellular fluid (BECF) in the central nervous system (CNS). The blood–brain barrier is formed by capillary endothelial cells, which are connected by tight junctions with an extremely high electrical resistivity of at...
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http://en.wikipedia.org/wiki/Blood–brain_barrier
Physiological interface between brain tissues and circulating blood created by a mechanism that alters the permeability of brain capillaries, so that some substances are prevented from entering brain tissue, while other substances are allowed to enter freely. After [
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http://sis.nlm.nih.gov/enviro/iupacglossary/glossaryb.html
The barrier that exists between the blood and the cerebrospinal fluid, which prevents the passage of various substances from the bloodstream to the brain.
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http://www.aans.org/Media/Glossary-of-Terminology
(from the article `metabolic disease`) ...Most lysosomal storage disorders have no therapy, except for supportive care. The difficulty with most therapies is that they do not enter the ... The blood-brain barrier keeps large molecules from passing into the brain or spinal cord from the blood. When this barrier is destroyed around ... ...
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http://www.britannica.com/eb/a-z/b/79
A network of blood vessels and tissue that is made up of closely spaced cells and helps keep harmful substances from reaching the brain. The blood-brain barrier lets some substances, such as water, oxygen, carbon dioxide, and general anesthetics, pass into the brain. It also keeps out bacteria and other substances, such as many anticancer drugs. Al...
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http://www.cancer.gov/dictionary?expand=B
(BBB) A mechanism that controls the passage of substances from the blood into the cerobrospinal fluid and thus into the brain and spinal cord. The blood-brain barrier (BBB) lets essential metabolites, such as oxygen and glucose, pass from the blood to the brain and central nervo...
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http://www.daviddarling.info/encyclopedia/B/blood-brain_barrier.html
A functional semi-permeable membrane separating the brain and cerebrospinal fluid from the blood. It allows small and lipid soluble molecules to pass freely but is impermeable to large or ionized molecules and cells.
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http://www.encyclo.co.uk/local/20898
<pharmacology, physiology> A protective barrier formed by the blood vessels and glia of the brain. It prevents some substances in the blood from entering brain tissue. ... The blood vessels of the brain (and the retina) are much more impermeable to large molecules (like antibodies) than blood vessels elsewhere in the body. This has important ...
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http://www.encyclo.co.uk/local/20973
(BBB) blood–cerebrospinal fluid barrier the barrier that separates blood from brain tissue everywhere except in the hypothalamus. It is permeable to water, oxygen, carbon dioxide, and nonionic solutes such as glucose, alcohol, and general anesthetics; it is only slightly permeable to electrolytes and other io...
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http://www.encyclo.co.uk/local/21001
The blood vessels of the brain (and the retina) are much more impermeable to large molecules (like antibodies) than blood vessels elsewhere in the body. This has important implications for the ability of the organism to mount an immune response in these tissues, although the basis for the difference in endothelial permeability is not well understood.
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http://www.encyclo.co.uk/visitor-contributions.php
Blood-brain barrier: A protective network of blood vessels and cells that filters blood flowing to the brain.
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http://www.medterms.com/script/main/art.asp?articlekey=2484
A specialized mechanism that inhibits the passage of certain materials from the blood into brain tissue and cerebrospinal fluid.
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http://www.mhhe.com/biosci/abio/glossary.mhtml
A selective barrier between brain blood vessels and brain tissues whose effect is to restrict what may pass from the blood into the brain. Certain compounds readily cross the blood brain barrier. Others are completely blocked.
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http://www.virology.net/ATVGlossary.html
[
n] - a mechanism that creates a barrier between brain tissues and circulating blood
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http://www.webdictionary.co.uk/definition.php?query=blood-brain%20barrier
The specialized arrangement of capillaries in the brain that prevents blood from reaching the nerve cells, thus protecting the brain from potentially toxic substances that circulate in the blood. Capillaries penetrate the meninges surrounding the brain, but do not reach the actual neurons of the brain.
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https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter
tight cell junctions of the endothelia lining the blood vessels that serve the central nervous system, preventing passage of microbes from the bloodstream into the brain and cerebrospinal fluid
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https://courses.lumenlearning.com/microbiology/chapter/glossary/
A semi-permeable membrane separating the brain and cerebrospinal fluid from the blood. It allows small and lipid soluble molecules to pass freely but is impermeable to large or ionized molecules and cells.
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https://www.encyclo.co.uk/local/20836
a layer of tightly bound cells that prevents certain substances carried in the bloodstream from entering the brain
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https://www.encyclo.co.uk/local/20875
noun a mechanism that creates a barrier between brain tissues and circulating blood; serves to protect the central nervous system; `the brain was protected from the large molecules of the virus by the blood-brain barrier`
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https://www.encyclo.co.uk/local/20974
The membrane which separates the brain cells and the circulating blood.
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https://www.encyclo.co.uk/local/22233
The selective barrier that controls the entry of substances from the blood into the brain.
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https://www.encyclo.co.uk/local/23246
A membrane that lets some substances from the blood into the brain but keeps out others.
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https://www.sparknotes.com/psychology/psych101/glossary/terms/
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