Figure 1.

(a) A representative 3D image stack of the cortical microvasculature. The z depth is about 250 µm. (b) Representative images of a pial arteriole, pial venule, penetrating arteriole, penetrating venule, and cortical capillary at baseline and post-CA coded with pseudo colors. We observed pial arteriolar constriction at 60 min post-CA compared with baseline, indicated by white arrows. The pial and penetrating venule and capillary dilations are visualized at 5 min post-CA as indicated by white triangles.