<prompt> Trigeminal or Meckels cave is present in relation to:Falx cerebriFalx cerebelliTentorium cerebelliDiaphragma sellae  <response>: Meninges of Braini Brain is protected byBony covering of the craniumThree membranous coverings Meningesii The three meninges areOuter duramaterMiddle arachnoid materInner piamateriii The dura mater is outermost and thickest of all meninges. It encloses cranial venous sinuses and has a distinct blood supply and nerve supply.iv The duramater has two layers - an outer endosteal layer and an inner meningeal layer.v The outer endosteal layer forms the endosteum of skull.vi The meningeal layer is folded and form partitions which divide cranial cavity into compartments. The folds arefalx cerebrifalx cerebellaTentorium cerebellaDiaphragma Sella.vii FALX CEREBRIIt is a large sickle shaped fold of duramater occupying the median longitudinal fissure between two cerebral hemispheres.The superior sagittal sinus, inferior sagittal sinus and the straight sinus are closely related to falx cerebri.viii FALX CEREBELLIIt is present in the posterior cerebellar notch.ix TENTORIUM CEREBELLIIt forms the roof of the posterior fossa and separates the cerebellum from occipital lobes of the cerebrum. The trigeminal or meckels cave is present in relation to tentorium cerebelli.x DIAPHRAGMA SELLAEIt is a small circular, horizontal fold of duramater forming the roof of the hypophyseal fossa.The diaphragm has a central aperture through which the stalk of hypophysis cerebri passes. 