[Arterial vascularization of the lenticular nucleus].

The arterial vasculature of the lenticular nucleus was studied on 30 human brains the vascular system of which was injected with Indian ink mixed with gelose. The arteries of the lenticular nucleus belong to the group of anterior central arteries issued from the internal carotid artery and its terminal branches, except for the posterior cerebral artery. Examination of serial sections made translucent by the Spalteholtz method enabled us to follow the courses of these vessels within the lenticular nucleus. In this nucleus two vascular networks were present, with different vascular organization and density. These differences were due to the histological structure and specific embryonic origin of each part of the lenticular nucleus.