Blood fails to clot while flowing in the blood vessel…

General Knowledge • Science

Question 29 of 66

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Blood fails to clot while flowing in the blood vessel because of the presence of:

A. Heparin

B. Prothrombin

C. Haemoglobin

D. Hirudin

Answer: Option A

Heparin is a natural anticoagulant present in the blood that prevents clotting inside blood vessels.

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