Note that the outlet tubing concentration is the same as the organ outflow for that tracer. In MMID4, all residues are calculated by integrating the inflow and outflow curves from the submodels . The parameters that control and contain the tracer residues are shown in Table  3.4 . Tracer contents window. The user can specify which vascular components are included in the whole organ residue calculations.
Contents switches window.
3.28 contains only the actual vasculature in the whole organ residue calculation, since the contents of both the inlet and the outlet tubing have been turned off. Contents by region window with the path selection button activated. For the arterioles, capillaries, and venules, the amounts in a single pathway or the total in all pathways are available. This choice is controlled by the path selection button, which does not, of course, affect the values reported for the inlet tubing, artery, vein, or outlet tubing. Note that the residuals are not normalized and may be either positive or negative.