Question

Intrinsic and extrinsic pathways of blood clotting are interlinked at the activation steps of which of the following factors?

• A. Factor IX
• B. Factor IV
• C. Factor X
• D. Factor XIII-a

Answer 1

The correct option is C Factor X

Both intrinsic and extrinsic pathway of blood clotting is interlinked at the final common pathway of factor $X$, thrombin and fibrin.
Hence, the correct option is C.