part of part of vessel drains blood from system vein cerebral vein http://upload.wikimedia.org/wikipedia/commons/9/9f/Gray568.png GAID:530 Wikipedia:Cerebral_veins venae encephali XAO:0004160 UBERON:0001663 venae cerebri EMAPA:37140 The cerebral veins are divisible into external and internal groups according to the outer surfaces or the inner parts of the hemispheres they drain into. The external veins are the superior cerebral veins, inferior cerebral veins, and middle cerebral vein. [WP,unvetted]. NCIT:C53037 FMA:50981 MA:0002096 SCTID:244392000 UMLS:C0007797 MESH:D002550 telencephalon brain blood vessel