when the blue fluorescing dye sits ( 4-acetamido-4'-isothiocyanato-stilbene-2,2'-disulfonic acid disodium salt ) is injected into one of a pair of electrically and dye-coupled oligodendrocytes it does not cross the intercellular junctions but remains in the injected cell .
C0021721
intercellular junctions
C0007634
cell