Natural habitat of Schistosoma (blood flukes) -
The adult worm of S.haematobium live primarily in the vesical and pelvic venous plexuses where as S.japonicum and S.mansoni inhabit superior mesentric vein and inferior mesentric vein respectively (refer pgno:119 baveja 3 rd edition)
Veins of the urinary bladder
Poal & pelvic veins
Vesical plexuses
All of the above
parasitology