Question

Blood doesn't clot inside blood vessels due to the presence of

Answer 1

Answer:

Blood clotting disorders occur when some clotting factors are missing or damaged. This causes clots to form inside the body that block normal blood flow and cause serious problems. Blood clots can occur in and travel to different parts of the body, including: Veins, called a deep venous thrombosis.

Explanation:

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Answer 2

Answer:

Blood proteins, prothrombin and fibrinogen do not form blood clot inside blood vessels as these are in inactive form due to the presence of anticoagulant heparin. At the injury, these are activated by thrombokinase enzymes of bloods platelets.