Comments:
Ca diffusion in a spherical shell, with atpase pump and na/ca exchanger. Modified from ca_diffus.mod from chapter 9 of hines and carnevale. Paper cites the following: yamada et al. (1989), hodgkin and keynes (1957), kimura et al. (1987) and mullins (1984). Modeling study based on previous experimental results, such as serafin et al. 1991a,b. The animal model info here is from the previous experimental results.