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[Venous vascularization of the lentiform nucleus]
1Institut d'Anatomie Normale de la Faculté de Médecine de Strasbourg.
Abstract:
The venous vascularization of the nucleus lentiformis in man is studied in 30 brains by injecting the vascular system with gelatinous Indian ink. The venous vascularization of the nucleus lentiformis is drained towards the deep venous system of the brain by two ways, one ascending, the other descending. The first one is formed by superior lenticular veins which drain into the thalamo-striate vein, principal tributary of the internal cerebral vein. The second one is formed by inferior lenticular veins which depend from the deep middle cerebral vein, another tributary of the internal cerebral vein. The veins of the nucleus lentiformis, especially the veins of the putamen, present many similarities with these one of the cerebral cortex. They form the center of venous units surrounded by an arterial ring formed by the branches of ramification of the central arteries. The principal vein of the unit is surrounded by a capillary-free space. This similarities may be explained by the common origin of the cerebral cortex and of the putamen, both belong to the neocortical system.
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