And so the signal travels through the cytoplasm until it gets to the third node. And this continues. And this jumping process in which our action potential jumps from one node to the next node, to the third node, this process is known as saltatory conduction. And saltatory conduction greatly speeds up the movement of our action potential because instead of the action potential actually moving through the entire membrane, which would slow it down, it basically moves only through these certain sections known as the note of Ranvia. And this greatly speeds up the process of the propagation of that action potential. So, on top of increasing the thickness of our axon and decreasing the length of that axon, another way that our body can speed up the propaganda of that action potential is by using these cells, glial cells to myelinate or insulate certain sections of the axon.