=====Internal cerebral vein===== {{ https://classconnection.s3.amazonaws.com/112/flashcards/1804112/png/veins31348938958724.png?400}} The internal cerebral veins (deep cerebral veins) drain the deep parts of the hemisphere and are two in number; each is formed near the [[Interventricular foramen]] by the union of the terminal and choroid veins. They run backward parallel with one another, between the layers of the [[tela chorioidea]] of the third ventricle, and beneath the splenium of the corpus callosum, where they unite to form a short trunk, the great cerebral [[vein of Galen]]; just before their union each receives the corresponding [[basal vein of Rosenthal]]. The transition from the [[lateral ventricle]] to the [[third ventricle]] contains both internal cerebral veins