Publisher Summary The main cortical areas differ in the organization of their respective vascular beds the archicortex (hippocampus) shows a simple vascular bed corresponding to its primitive structure; the arteries, of approximately the same length, are parallel and thin. The paleocortex (olfactory area) shows typical arterial ramifications “en calice” (goblet-like) or “en chandelier” (chandelier-like). Amygdaloid nucleus is very abundantly supplied by branching arteries. The neocortex (isocortex), on the other hand, is supplied by arteries of variable length, which seem to terminate in different cellular layers. The heterotypical agrunulous isocortex (area 4) shows a very rich and dense vascular tree. The heterotypical grunulous isocortex (coniocortex) seems relatively poorly supplied. Results seem to lead to two important conclusions; the cerebral cortex, which is not a homogeneous structure as far as its cyto-architecture and angio-architecture are concerned, is also not homogeneous from the point of view of its hemodynamics and different areas of the cortex seem to show topographic variations of the blood flow. Results therefore indicate that the blood flow of the cerebral cortex is not uniform, and considerable differences exist between the individual functional zones.