FRANCIS LEROY & SIMON FRANCE-LANORD, BIOCOSMOS / SCIENCE PHOTO LIBRARY FRANCIS LEROY & SIMON FRANCE-LANORD, BIOCOSMOS / SCIENCE PHOTO LIBRARY
Fibrin and clot formation. Animation showing the role played by the fibrous protein fibrin during the clotting of blood. Fibrin molecules are fibrous proteins that are formed from a precursor, fibrinogen, under the action of a protease named thrombin. Once formed, fibrin polymerases to form a 'mesh' that grows into a haemostatic plug over a wound site. The mesh is shown binding red blood cells (erythrocytes) together. A role in clotting is also played by platelets (not shown here).
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