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arachnoid barrier cell layer


Definition: the part of the arachnoid mater located immediately internal to the dura mater (dural border cell layer); characterized by flattened ovoid cells with prominent nuclei, absence of extracellular spaces and collage, and numerous tight (occluding) junctions.

Synonym(s): barrier cell layer of arachnoid mater

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.