part of contributes to morphology of choroid plexus TODO - check relationship to ventricle. Check subclass - ZFA says vasculature. Note that FMA:61934 (choroid plexus of cerebral hemisphere) has exact synonym 'choroid plexus' but it is not clear that this belongs here, as the fourth ventricle is not in the cerebral hemisphere brain ventricle/choroid plexus brain ventricle tela choroidea vascular plexus vasculature of organ vasculature of central nervous system