part of overlaps choroid plexus organ component layer tela choroidea A structure found in the walls of the ventricles of the brain, consisting of part of the meninges (pia mater in mammals) plus ependyma[cjm]. tela chorioidea FMA:242849 Wikipedia:Tela_chorioidea TAO:0000447 ZFA:0000447 neuronames:1378 ventricle of nervous system meningeal cluster