This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
Schistosoma japanicum resides in - 
Select and explain. 
A. Vesical Plexus, B. Splenic Vein, C. Systemic Circulation, D. Gall bladder
B: Splenic Vein
Answer: B: Splenic Vein 
Explanation: The adult worms of S.haematobium live primarily in the vesical and pelvic venous plexuses whereas S.japonicum and S.mansoni inhabit the superior mesentric vein and the inferior mesentric vein respectively (refer pgno:119 baveja 3 rd edition)