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Cell to cell contact

Electrical coupling requires Ion flow. FOr cardiac muscle cells to contract in unision, there must be electrical coupling between cells. What type of cell to cell contact is most likley responsible for this coupling? What cell to cell junctions connect epithelial cells to a basment membrane

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All epithelia act as selectively permeable barriers, with tight junctions blocking diffusion of membrane proteins between apical (top) and basolateral (sides at the bottom) domains of the plasma membrane and sealing neighbouring cells together so that watersoluble molecules cannot leak between cells. Cell-cell contact ...