DM - dura mater
AM - arachnoid mater
AG - arachnoid granulations
IVF - inter-ventriclular foramen (of Monro)
CA - cerebral aqueduct (of Sylvius)
4V - fourth ventricle
LV - lateral ventricle
IVF - interventricular foramen
3V - 3rd ventricle
CA - cerebral aqueduct
SDM - dura mater of the spinal cord
CDN - caudate nucleus
CP4 - choroid plexus of the fourth ventricle oozing out of foramen of Luschka
CPLV - choroid plexus of the lateral ventricle
CP3V - choroid plexus of the third ventricle
DSS - dorsal sagittal sinus
LA - lateral apertures of the fourth ventricle (foramen of Luschka)