So, cytokinesis is essentially the division of the whole cell. Mytosis divided our nucleus, and now we've got two identical nuclei. cytokinesis divides the cell itself. I have a picture to show you in just a second, but let's just review the whole process. Remember, we had our whole stage of interface, and then, pro phase begins, we lose the nuclear envelope. We start condensing the chromosomes. The spindle fiber team's center zone is appearing. You can see my microtubules, my centriole. You can see that, let's see here. There we go. You can see that we're going to start to kind of jostle our chromosomes around so that they line up on the equator, the midline of the cell in metaphase. You can see my centrioles, the centrosome structure is at the poles. In anaphase, what's going to happen? We're going to pull those sister chromatids apart toward the poles. You end up, let's telophase. We get them there. We start reversing the whole process. We're going to unravel our DNA. We're going to reform the nuclear envelope. But then you see that we've got two nuclei inside one cell. That's not going to be cool. We have to go through cytokinesis. That's the literal division of the cell itself. Look, that's cytokinesis in action. You can see that these cells are actually splitting apart. Then this is a structure called a cleavage furrow, which I never recommend you going and searching for cleavage furrow on the internet because I made that mistake. Learn from my mistakes and don't do that. It's a little disturbing. I was hoping to find a free and open image of a cleavage furrow. But that's a cleavage furrow. It literally is so cool. The cell pinches in half. This is an animal cell. A plant cell that has a cell wall is going to have a whole another process. It can't pinch off because it has to build a wall. It basically starts building a brick wall between the two cells, which is plant cytokinesis. Let's do a walkthrough of the whole thing from start to finish using one of the little rig style animations. We'll see if that pulls all the pieces together for us.