The intrinsic pathway is shown with the blue arrows and when these two pathways converge they form the final common pathway and that is shown in red. Now, the positive feedback loops are shown in green. So let's begin with those. So we know that the entire purpose of the intrinsic and the extrinsic pathway is to produce this complex the dimer protein complex we call prothrombinase. And that's because it's prothrombinase that ultimately activates prothrombin into thrombin. And it's thrombin that essentially activates fibrinogen to form fiber and that's the protein fiber that aggregates to form those blood clots.