Figure 1.

A) Illustration of the intra-cortical vascular organization according to penetration depth and diameter, from the pial surface (top) to white matter (bottom). A denotes arteries and V denotes veins, the numbers indicate the vessel group. Group 6 arteries extends to white matter without perfusing the cortex (reproduced from Kim and Ogawa, 2012, adapted from Duvernoy et al., 1981). B) Illustration of the intra-cortical vascular according to vascular density. Vascular layers are denoted on the right, neuronal layers are denoted on the left of the schematic (reproduced from Duvernoy et al., 1981)