Table 1.
Human cerebral cortex vascular system components.
| 1. Extracerebral meningeal compartment |
| (a) Dural lamella: main venous sinuses |
| (b) Arachnoidal lamella: main arteries and veins |
| (c) Pial lamella: pial capillary anastomotic plexus |
| 2. Intracerebral extrinsic microvascular compartmenta |
| (a) Perforating capillaries (eventually arterioles and venules) |
| (b) Virchow-Robin space, the cortex drainage (prelymphatic) system |
| 3. Intracerebral intrinsic microvascular compartmenta |
| Intrinsic capillary anastomotic plexus between contiguous perforators, the cortex blood brain barrier (BBB) |
a
Both, the extrinsic (directly) and the intrinsic (indirectly) intracerebral microvascular compartments evolve from the Pial Capillary Anastomotic Plexus.