Fig. 2.

Regional distribution of tubules and vessels (A), and assignment of peritubular variables (B). Within the Cortex are PCT, DCT, and CNT, and these have assigned peritubular conditions; within the Medullary Ray are AHLc, CCD, and MRVR, for which the cortical ends have the cortical concentrations, and the CMJ-2 conditions are model variables. Within OM, there is continuity of the interstitial conditions across CMJ-1 (Cortical) and CMJ-2 (Medullary Ray), but agreement from mid-OM to the OIMJ. Within IM, there is continuity across the OIMJ and a single set of conditions at each level.