Figure 2
From: The dynamics of venous return and response to hypervolemia in the toad, Bufo marinus (L.)
Effect of systemic hypervolemia on mean relative renal portal blood flow and relative ventral abdominal blood flow as compared with control values of Bufo marinus (n = 8). Filled circles denote mean relative renal portal blood flows and open circles show mean relative ventral abdominal flows. Injection was administered at t = 0 and lasted 4.5 to 5.5 min. All values are expressed as means ± S.E. The 5 min pre-injection values were used as control values for both relative blood flow determination and statistical analysis.