Coagulation occurs in a series of steps known as the coagulation cascade, which consists of the intrinsic, extrinsic, and common pathways. Each pathway involves a sequence of activations of coagulation factors, ultimately leading to the conversion of fibrinogen into fibrin, forming a stable blood clot. Histologically, this process can be observed in tissue samples where clot formation is evident, such as in cases of thrombosis.
