Figure 7. The effect of CPA and CPA plus TEA on the outward K⁺ currents.

From a holding potential of −80 mV, the membrane potential was clamped from −60 to +10 mV. A, control record; B, 5 min in CPA; C, 5 min after addition of TEA (5 mM) to the bath; D shows superimposed specimen records from A, B and C recorded during the depolarization to 0 mV. The pipette solution had normal K⁺ concentration.