Comments:
Fast mechanism for submembranal ca2+ concentration (cai). Takes into account (1) increase of cai due to calcium currents and (2) extrusion of calcium with a simple first order equation. Written by destexhe 1995. Compatible with "cad" but parameters specific to the pump are dummy here. Animal model is as specified in the paper, from previous results in bal et al. 1995a,b, kim et al. 1995, von krosigk et al. 1993.