Table 4.

Parameter values for ion movement
Physical constants
R	8.315 J mol−1 K−1	T	310 K	F	96490 C mol−1
Whole cell conductance’s
gCl	31.4 nS *	gK	14 nS **
Pump Densities
αNaK	2.236 × 10−17 mol	αNKCC	3.2 × 10−17 mol
Volumes
w0	10− 12 L	wL/w0	0.02
Water permeabilities
LPa	1.68 × 10−15 L2 J−1 s−1	LPb	2.07 × 10−14 L2 J−1 s−1
LPt	8.4 × 10−17 L2 J−1 s−1
Cell properties
Cm	10−11F	x/w0	30.7 mM
Electrical parameters
Rtight	6.8 × 108 ohms	Rcell	0	gt,Na	0.955
Ionic valence
zCl	−1	zK	+1	zNa	+1
zCa	+2

^*from Arreola et al. (1996),

^**from Thompson and Begenisich (2006), other parameters are physical constants or model fits chosen to give the correct steady state concentrations and membrane potentials.