Schistosome fluke worm in ca5/2/2023 haematobium most often inhabitsin the vesicular and pelvic venous plexus of the bladder, but it can also be found in the rectal venules. guineensis also inhabit the inferior mesenteric plexus but lower in the bowel than S. However, both species can occupy either location and are capable of moving between sites. mansoni occurs more often in the inferior mesenteric veins draining the large intestine. japonicum is more frequently found in the superior mesenteric veins draining the small intestine, and S. Male and female adult worms copulate and reside in the mesenteric venules, the location of which varies by species (with some exceptions). The schistosomulae migrate via venous circulation to lungs, then to the heart, and then develop in the liver, exiting the liver via the portal vein system when mature. Upon release from the snail, the infective cercariae swim, penetrate the skin of the human host, and shed their forked tails, becoming schistosomulae. The stages in the snail include two generations of sporocysts and the production of cercariae. Under appropriate conditions the eggs hatch and release miracidia, which swim and penetrate specific snail intermediate hosts. Schistosoma eggs are eliminated with feces or urine, depending on species.
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