WMeninges
WArachnoid granulation
WArachnoid mater
WArachnoid trabeculae
WCerebellar tentorium
WChoroid plexus
WCisterna magna
WDenticulate ligaments
WDiaphragma sellae
WDura mater
WEpidural space
WFalx cerebelli
WFalx cerebri
WFilum terminale
WInterpeduncular cistern
WLeptomeningeal collateral circulation
WMeningeal branch of the mandibular nerve
WPerivascular space
WPia mater
WPontine cistern
WSubarachnoid cisterns
WSubdural space
WTela choroidea
WTrigeminal cave