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How the Blood Clots; How to Prevent Abnormal Clotting

By Richard N. Fogoros, M.D., About.com

Created: December 02, 2003

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Clot 4

Figure 4 - How the blood clots, 4

The clotting mechanism, continued.

Figure 4. The thrombin system has been activated (also by exposure of the blood to the surface of the ulcer), and fibrin strands begin to form, connecting the aggregated platelets, and drawing them together.

Page 3 - The clotting mechanism, continued.

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