This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Most common site of venous thrombosis:March 2013 
Select and explain. 
A. Veins of upper extremity, B. Veins of lower extremity, C. Dural sinus, D. Poal vein
B: Veins of lower extremity
Answer: B: Veins of lower extremity 
Explanation: Ans. B i.e. Veins of lower extremityCommoner sites of venous thrombosis includes deep vein in the lower extremity below the knee and superficial saphenous, hepatic and renal veins; dural sinuses.