So basically, as soon as the extrinsic and the intrinsic pathway activates as much ten as possible, that factor ten will go on and combine with factor five protein and that will form a dimer complex we call prothrombinase. And we'll see why. We call it Protombinase in just a moment. We call it this because it goes on to activate prothrombin into its active form known as Thrombin. And once again, it's important to keep in mind that all these enzymes are circulating in close proximity, they're found floating around inside our blood. Now, as soon as we form Thrombin, thrombin goes three different ways.