Table 2.
Cortical microvasculature morphological characterization.
| Capillary | Penetrating arteriole | Penetrating venule | Nonpenetrating noncapillary | |
|---|---|---|---|---|
| Vessel count per subject | 820 ± 63 | 3.2 ± 0.3 | 7.5 ± 0.5 | 142 ± 25 |
| Segment diameter (µm) | 6.60 ± 0.11 | 12.25 ± 1.42 | 10.25 ± 0.68 | 13.45 ± 0.02 |
| Segment length density (mm/mm3) | 566 ± 29 | 11 ± 1 | 27 ± 2 | 73 ± 14 |
| Segment volume density (%) | 1.99 ± 0.12 | 0.20 ± 0.04 | 0.24 ± 0.03 | 1.23 ± 0.03 |
| Tortuosity | N/A | 1.13 ± 0.03 | 1.11 ± 0.01 | N/A |
| Branch density (branches/mm3) | 5633 ± 315 | |||
Morphological characterization of the cortical microvascular networks imaged. The data from runners and nonrunners have been pooled due to absence of significant differences in any of the parameters examined. The average across-animal cortical vascular density was 3.5 ± 0.3%. NA = not applicable. Mean ± SEM, N = 16 mice.