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blood-brain barrier

 

Definition: a selective mechanism opposing the passage of most ions and high molecular weight compounds from the blood to brain tissue located in a continuous layer of endothelial cells connected by tight junctions; similar capillaries are Found in the retina, iris, and inner ear, and within the endoneurium of peripheral nerves.

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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