And that can create another action potential. Or it can make a muscle contract or do many other things, as we'll discuss in a future lecture. Now let's move on to voltage gated ion channels. So we essentially see that these ligand gated ion channels respond to the binding of special types of stimulating molecules. In this particular case, these transmembrane proteins, which also allow the movement of these ions across the cell, a membrane, respond to a change in the electric potential difference between the two sides of the membrane. So in a change of the membrane voltage, So let's suppose this is some particular voltage gated ion channel.