Table 2 Skeleton and volume metrics of capillary networks (present work, prior works)

Vertex density

#⋅10³/mm³

15.6

8-11 (mice/human brain, cast [7])

Mean capillary diameter

μm

6

5.9 (human brain, laser microscopy [3])

4-9 (brain, model [17])

3.5 ± 0.2 (mouse brain cortex, microscopy, [29])

Total length per unit volume

mm⁻²

615

370-1090 (cat brain cortex, various refs. in [28])

469.9 (brain, model [17])

411-533 (human brain, laser microscopy [3])

600 (human cortex, model, [16])

Vascular surface per unit volume

mm⁻¹

11.15-10.93

6.2-9.7 (cat brain cortex, various refs. in [28])

15.3 (cat brain cortex, ex-vivo [28])

9.32 (brain, model [17])

Vascular volume fraction

% of total volume

3.45-3.93

1.4-2.9 (cat brain cortex, various refs. in [28])

1.54 (brain, model [17])

2.43-2.45 (human brain, laser microscopy [3])

0.8-1.5 (mouse brain cortex, microscopy, [29])

2.49 (human cortex, model, [16])