Fig. 8. Perfusion coefficients in low-hematocrit mouse embryos. To ensure that plexus plasma flow was not hampered by immobilizing the erythroblasts to the yolk sac, we determined the perfusion coefficient range in wild-type and acrylamide-treated embryos at 8- to 9-somites. Each measurement is plotted and three measurements were made from each embryo. The total number of embryos analyzed is indicated for each treatment. A similar range of measurements is seen in control and acrylamide-treated embryos indicating that plasma flow is comparable between these two groups.