Intrinsic and Extrinsic Pathways of Coagulation in Hematology

Learn about the intrinsic and extrinsic pathways of coagulation in this 21-minute hematology lecture. Explore the step-by-step processes of both pathways, including the activation of various clotting factors and their roles in the coagulation cascade. Understand the differences between the longer intrinsic pathway, initiated by exposed endothelial collagen, and the shorter extrinsic pathway, triggered by tissue factor release. Discover how these pathways converge and reinforce each other, as well as their clinical measurements through partial thromboplastin time (PTT) and prothrombin time (PT). Gain valuable insights into secondary hemostasis and its importance in the blood clotting process.