The intrinsic and extrinsic pathways of blood clotting are identical after formation of
A)thromboplastin.
B)prothrombinase.
C)clotting factor XII.
D)fibrin.
E)tissue factor.

Question

Quizplus · Accepted Answer

The formation of prothrombinase is the key step that activates both the intrinsic and extrinsic pathways of blood clotting. Once prothrombinase is formed, it converts the inactive prothrombin to active thrombin, which then converts fibrinogen to fibrin, leading to the formation of a blood clot. Therefore, both pathways become identical after the formation of prothrombinase.

The Intrinsic and Extrinsic Pathways of Blood Clotting Are Identical