Red blood cell partition in diverging microvascular bifurcations. Curves giving red blood cell flux fraction in one branch as a function of overall flow fraction entering that branch are derived from empirically derived relationships as described in the text, assuming a discharge hematocrit of 0.4 in the parent vessel. Assumed diameters of parent vessel, DF, and branches, Dα and Dβ, are indicated on each plot. A. Symmetric bifurcation. B. Asymmetric bifurcation.