But hopeful Alex Cameron has reportedly found love in the arms of another woman, Dancing With The Stars' Ash Pollard. The 35-year-old Brit is said to be smitten with Ash after meeting the pretty blonde at a part earlier this year. Scroll down for video. Romantic: Alex Cameron is reportedly dating Ash Pollard, leading to speculation the 35-year-old did not win Sam Frost's heart in The Bachelorette.
Blood-clotting proteins circulate in the blood plasma in an inactive form, poised to participate in blood coagulation upon tissue injury. Blood-clotting proteins generate thrombin, an enzyme that converts fibrinogen to fibrin, and a reaction that leads to the formation of a fibrin clot.
Platelets in the blood stick to collagen fibres that make up the vessel wall and this acts as a plug. From this point on enzymes (proteins called clotting factors) trigger a chain of events takes place to form a clot: Prothrombin converts to thrombin, calcium is required for this.lood normally remains in its liquid state while it is within the blood vessels but when it leaves them the blood may thicken and form a gel (coagulation). Blood clotting (technically blood coagulation) is the process by which (liquid) blood is transformed into a solid state.