Absence of dilated lateral intercellular spaces in fluid-transporting frog gallbladder epithelium. Direct microscopy observations.

@article{Frederiksen1974AbsenceOD,
  title={Absence of dilated lateral intercellular spaces in fluid-transporting frog gallbladder epithelium. Direct microscopy observations.},
  author={Ole Frederiksen and J\orgen Rostgaard},
  journal={The Journal of cell biology},
  year={1974},
  volume={61 3},
  pages={830-4}
}
Isosmotic transport of solutes and water from the mucosal to the serosal side in the absence of external physicochemical gradients is a characteristic feature of single-layered epithelia such as renal proximal tubule, small intestine, and gallbladder . In recent years the idea has developed that water transport by these epithelia is a secondary result of active solute (Na' or NaCI) transport (1-3) . Coupling between salt and water transfer is held to occur in the epithelial layer in a separate… CONTINUE READING

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