Modulation of the isoprenaline‐induced membrane hyperpolarization of mouse skeletal muscle cells

1 The hyperpolarization of the resting membrane potential, Vm, induced by isoprenaline in the lumbrical muscle fibres of the mouse, was investigated by use of intracellular microelectrodes. 2 In normal Krebs‐Henseleit solution (potassium concentration: K+o=5.7mM, ‘control’), Vm was −74.0 ± 0.2 mV; l...

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