Figure 3.

(A) The ratio of extracellular effective conductivities in the transverse and longitudinal directions to nominal extracellular conductivity, ${\sigma }_e$, with junctional cleft width fixed at $1.5\times {10}^{-6}$ cm with lateral extracellular width changing such that the extracellular volume fraction ranges up to 50%. (B and C) The ratios of intracellular effective conductivities in the longitudinal (B) and transverse (C) directions to nominal intracellular conductivity, ${\sigma }_i$, plotted against gap junctional coupling, g.