Figure 5.

(A) Charge accumulated by nonactivated cells during longitudinal impulse propagation at 100%, 12.5%, and 1.56% of coupling in control cells (80 μm/20 μm), long cells (160 μm/20 μm), and wide cells (80 μm/40 μm), and in a continuous model with the same resistivity as the control. Note that this charge corresponds to the area under the curve (ϕ) in Fig. 4 within the x-interval from the point where ϕ ∼ –40 mV to x_max, multiplied by the specific membrane capacity (in pF/μm²). For details, see Fig. S5, Fig. S6, and Fig. S7. (B) Minimum longitudinal (L) and transverse (T) θ and minimum g_GJ directly before conduction block due to uncoupling. There is no block in a continuous model (asterisks).