And the entire purpose of this extrinsic pathway is to basically create a quick response and activate this important protein, enzyme Ten, because it's enzyme Ten, after combining with another protein Five, that basically activates prothrombin into Thrombin. And then it's Thrombin that is used to actually form the blood clots that are used to seal off that particular rupture in the blood vessel. Now, at the same exact time, to amplify, to greatly increase the number of X that we activate, we also have the other pathway, the intrinsic pathway. And so in the intrinsic pathway, what happens is as a result of the exposure of the collagen found in the extracellular environment outside that blood vessel, so basically, as a result of that cut in the blood vessel, we basically create a cascade of events. We have these activation events taking place. We have Xiaomogen Twelve activating to its enzyme Twelve, and enzyme Twelve activates Eleven into its active form.