They basically activate factor ten which is needed to basically initiate the final common pathway that is needed to actually stimulate the activation of throbin which is then used to stimulate the activation of fibrin. And these fibin molecules basically form this meshlike aggregate. So these are the individual Fibon monomers and they basically aggregate spontaneously following activation to form our blood clot. And the blood clot is used to basically coagulate the blood to form those clots on those cuts to basically prevent the leakage of blood out of that blood vessel. Now as I mentioned earlier, thrombin basically creates various different types of feedback loops and one of these positive feedback loops is shown on the board with the green arrow. So what happens is once throbin is activated it not only activates fibrinogen to form fibrin, it also goes back and stimulates factor A to basically continue to interact with factor nine to basically stimulate or to basically convert even more of these factor x inactive zymogen, factor ten into the active form.