Different Membrane Pathways Mediate Ca²⁺ Influx in Adrenal Chromaffin Cells Exposed to 150–400 ns Electric Pulses

Figure 5

Effect of extracellular Ca²⁺ on the Ca²⁺ response of the cells to nsPEF. Averaged cell responses ± SE for cells exposed to (a) a 150 ns pulse, ( 7–10), (b) a 200 ns pulse, (), and (c) a 400 ns pulse, (). Each pulse was applied in the presence and absence of extracellular Ca²⁺at an -field of 3.1 kV/cm. The arrow indicates when the pulse was delivered to the cells.

(a)

(b)

(c)