Figure 1.

Schematic of components of neuron model. Ca²⁺ buffers were uniformly distributed within the cytosol. The membrane contained a Na⁺ channel; the A, DR, C, and AHP K⁺ channels; the L, N, and T Ca²⁺ channels; and a Ca²⁺ pump. Ca²⁺ concentration was computed as a function of time t and radial distance r inside the sphere.