The choroid plexus, or plica choroidea, is a plexus of cells that arises from the tela choroidea in each of the ventricles of the brain. ... The choroid plexus ...ChoroidplexusFromWikipedia,thefreeencyclopediaJumptonavigationJumptosearchChoroidplexusChoroidplexusshowninlateralventricleCoronalsectionoflateralandthirdventricles.DetailsIdentifiersLatinPlexuschoroideusMeSHD002831NeuroNames1377TA98A14.1.09.279A14.1.01.307A14.1.01.306A14.1.01.304A14.1.05.715TA25654,5786,5980FMA61934Anatomicaltermsofneuroanatomy[editonWikidata]Thechoroidplexus,orplicachoroidea,isaplexusofcellsthatarisesfromthetelachoroideaineachoftheventriclesofthebrain.[1]Thechoroidplexusproducesmostofthecerebrospinalfluid(CSF)ofthecentralnervoussystem.[2]CSFisproducedandsecretedbytheregionsofthechoroidplexus.[3]Thechoroidplexusconsistsofmodifiedependymalcellssurroundingacoreofcapillariesandlooseconnectivetissue.[3]Contents1Structure1.1Location1.2Microanatomy2Function2.1Blood–cerebrospinalfluidbarrier3Clinicalsignificance3.1Choroidplexuscysts3.2Other4Etymology5Additionalimages6Seealso7References8Sources9ExternallinksStructure[edit]Location[edit]Schemeofroofoffourthventricle.Thearrowisinthemedianaperture.1:Inferiormedullaryvelum2:Choroidplexus3:Cisternamagnaofsubarachnoidspace4:Centralcanal5:Corporaquadrigemina6:Cerebralpeduncle7:Superiormedullaryvelum8:Ependymalliningofventricle9:PontinecisternofsubarachnoidspaceThereisachoroidplexusineachofthefourventricles.Inthelateralventriclesitisfoundinthebody,andcontinuedinanenlargedamountintheatrium.Thereisnochoroidplexusintheanteriorhorn.Inthethirdventriclethereisasmallamountintheroofthatiscontinuouswiththatinthebody,viatheinterventricularforamina,thechannelsthatconnectthelateralventricleswiththethirdventricle.Achoroidplexusisinpartoftheroofofthefourthventricle.Microanatomy[edit]Thechoroidplexusconsistsofalayerofcuboidalepithelialcellssurroundingacoreofcapillariesandlooseconnectivetissue.[3]Theepitheliumofthechoroidplexusiscontinuouswiththeependymalcelllayer(ventr