Tags: Anatomical Structure, Brain.
In front the cisterna interpeduncularis extends forward across the optic chiasma forming the cistern of chiasma chiasmatic cistern or suprasellar cistern and on to the upper surface of the corpus callosum for the arachnoid stretches across from one cerebral hemisphere to the other immediately beneath the free border of the falx cerebri and thus leaves a space in which the anterior cerebral arteries are contained.