And the length of this gap junction is about 35 angstroms. And the final aspect, the final difference between the voltage gated and ligan gate channels and the gap junctions is that these iron channels are produced by single type of cell, but gap junctions are actually produced by two cells. And we'll see why in just a moment. So let's move on to actually discuss what the structure of this gap junction is. So notice we have these two individual structures which are connected end to end inside that intercellular space. So each of these structures is known as a hemichannel or a connection.