Figure 3. Inward currents induced by adrenoceptor agonists.

All recordings were performed in external solution containing 20 mm K⁺ at a V_H of −80 mV. A, the NA-induced currents at various concentrations. B, the concentration-response relationship for various adrenoceptor agonists. All responses were normalized to the peak current induced by 10⁻⁶ m NA (*). Adrenaline and UK14304 mimicked the NA response. Each point and the vertical bars represent the mean ±s.e.m. from 5 neurones.