Transcellular ion route in rabbit gallbladder. Electric properties of the epithelial cells

The intracellular potential in gallbladder epithelial cellsis about minus 59 mV with respects to both mucosal and serosal media. It is a diffusion potential mainly due to K+;Na+ conductance seems to be very low. Entrance of Cl- into cellsappears to be coupled with Na+ a neutral carrier and exit towards blood side seems to be due to a NaCl neutral pump.