The intrinsic pathway of coagulation is activated by the

Question

Quizplus · Accepted Answer

The intrinsic pathway of coagulation is activated by exposure of factors XII, XI, IX, and VIII to collagen in damaged vessel walls. These factors are initially present in their inactive forms as proenzymes. Upon activation, these proenzymes undergo a cascade of enzymatic reactions to form thrombin and fibrin, leading to blood clot formation. Therefore, the correct answer is B - activation of proenzymes exposed to collagen.

The Intrinsic Pathway of Coagulation Is Activated by the