The Clotting Cascade

Enter the human body with this dynamic 3D video about how the blood clots. Learn how the clotting cascade (coagulation cascade) works to stop bleeding (hemostasis). This video uses 3D animation to showcase the key steps of blood clotting through the intrinsic, extrinsic, and common pathways. The National Bleeding Disorders Foundation (NBDF) would like to thank Sanofi for their generous support and partnership of this project. To learn more about the clotting cascade, please visit: