Table 2.

Parameters related to the extracellular space. Equations (7) and (40) are used to update ${\mathcal{O}}_e$ and ${[Na]}_e,{[Cl]}_e$, respectively

	Equation	Value	Description
${\mathcal{O}}_e$	(1a), (8a), (2)	300 mM	Extra. osmolarity
${[Y]}_e$	(7), (1a), (8)	1 mM	Extra. impermeant molecule
$z_Y$	(7), (8)	-1	Charge of extra. impermeant molecule
${[Na]}_e$	(4), (7), (1a), (8b)	147 mM	Extra. Sodium concentration
${[K]}_e$	(4), (7), (1a), (8b)	3 mM	Extra. Potassium concentration
${[Cl]}_e$	(4), (7), (1a), (8)	149 mM	Extra. Chloride concentration
${[NaCl]}_e$	(40)	0 mM	Extra. Salt concentration