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: Medicine
Mitral valve vegetations do not usually embolise to: 
Select and explain. 
A. Lung, B. Liver, C. Spleen, D. Brain
A: Lung
Answer: A: Lung 
Explanation: Mitral valve vegetation would obviously not go to the lung, as that would involve a backward flow.