Electrical activity in chromaffin cells of intact mouse adrenal gland.

Membrane potentials of medullary chromaffin cells of the adrenal gland of the mouse were measured in situ. Resting potential (-54.3 +/- 8.8 mV) depended on extracellular [K+] as predicted by the constant-field equation with a permeability ratio, PNa/PK, of 0.09. Current-voltage (I-V) relationships showed that the current is rectified across the chromaffin… CONTINUE READING