Extended Data Fig. 5: Lagrangian description of blood vessels.

(A) Drawing of a vessel segment based on the ULM map. Four MB tracks crossing the black segment. The speed of the MB is color-coded (see colorbar on the right). (B) Example of an arteriole and a venule penetrating deep in the cortex, the selected MB tracks are the one crossing the white segments. (C) Same as in (B) but for a shorter venule and arteriole. (A-C) N = 4 experiments.