This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Peripheral Vascular Disease, Subject name: Medicine
Most common source of systemic emboli is: 
Select and explain. 
A. Varicose veins, B. Mural thrombi, C. Cardiac thrombi, D. Pulmonary embolism
B: Mural thrombi
Answer: B: Mural thrombi 
Explanation: Ans: B (Mural thrombi) Ref: Kumar & Robbin, Pg 91Explanation:Systemic Thromboembolism80% from cardiac mural thromboembolism75% of it is from LV infarcts25% with dilated LAAortic aneurysm, atherosclerotic plaque, valvular vegetations, paradoxical embolismCommon arterial embolisation sites- Lower extremities (75%), CNS (10%), intestines, kidneys and spleenPulmonary thromboembolism occurs most commonly from DVT