RT Book, Section A1 Morales-Vidal, Sarkis A1 Schneck, Michael J. A1 Ramirez-Zamora, Adolfo A2 Dieter, Robert S. A2 Dieter, Raymond A. A2 Dieter, Raymond A. SR Print(0) ID 1126490324 T1 Venous Diseases of the Central Nervous System T2 Venous and Lymphatic Diseases YR 2011 FD 2011 PB McGraw-Hill Medical PP New York, NY SN 9780071601580 LK accesscardiology.mhmedical.com/content.aspx?aid=1126490324 RD 2024/04/20 AB The veins of the brain contain no valves, and the vessel wall is slim because of the absence of the muscular layer. The veins penetrate the dura mater and drain into the cranial venous sinuses.1,2,3 The cerebral veins are divided into two main groups—cerebral and cerebellar. The cerebral veins drain the external and internal surfaces of the hemispheres. The cerebral veins that drain the external surfaces of the cerebral hemispheres are the superior, middle, and inferior superficial cerebral veins. The cerebral veins that drain the internal cerebral structures are mainly the internal cerebral vein and the basal vein of Rosenthal, which drain in the great vein of Galen. There are two pairs of cerebellar veins, the superior and the inferior cerebellar veins (Figure 15-1).