Definitions for "Gap junction"
A specialized area of apposed plasma membranes containing connexons, proteins that bridge the extracellular space and that allow the cytoplasm of one cell to communicate with that of the other cell.
A site of electrical connection between two cells, where gap junction channels bridge the gap between the insides of the two cells and allow small molecules such as ions to cross directly from one cell to the other.
a cellular junction which allows the two-way spread of action potentials from one cell to the next.