Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) Total blood flow and vessel length at t = 200 days, for fixed arteriole-venule pressure drop (mean ± s.d. for 6–12 runs). (B) Time-dependent response of total vessel length to step changes in demand. Lower curve: oxygen demand. Upper curves: total vessel length (flowing, all, mean of 3 runs). (C, D) Network structures for demand 0.5 and 2.5 cm3/100 cm3/min. Length and color scales as in Figure 4.
