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Oncosphere

   Also found in: Medical 0.01 sec.
Oncosphere 

one of the larval stages of most tapeworms. The body is spherical with three pairs of chitinous hooks; hence, an oncosphere is often called a hexacanth—literally, a six-hooked embryo. The oncosphere develops within an egg inside the worm’s uterus. The egg then leaves the body of the host in the host’s feces. The oncosphere continues to develop in water Or in the body of an intermediate host.



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multilocularis are sensitive to environmental factors: elevated temperature and desiccation can effectively reduce oncosphere infectivity (Veit et al.
The oncosphere embryos emerge from the eggs, penetrate the intestinal wall, and are disseminated by the bloodstream to various tissues where the larval stage, or cysticercus, develops.
Gauci CG, Lightowlers MW Alternative splicing and sequence diversity of transcripts from the oncosphere stage of Taenia solium with homology to the 45W antigen of Taenia ovis.
 
 
 
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