oncosphere

oncosphere
SYN: hexacanth. [onco- + G. sphaira, sphere]

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on·co·sphere also on·cho·sphere 'äŋ-kō-.sfi(ə)r n a tapeworm embryo that has six hooks and is the earliest differentiated stage of a cyclophyllidean tapeworm called also hexacanth embryo

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n.
the six-hooked larva of a tapeworm. If ingested by a suitable intermediate host, such as a pig or an ox, the larva will use its hooks to penetrate the wall of the intestine. The larva subsequently migrates to the muscles, where it develops into a cysticercus.

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on·co·sphere (ongґko-sfēr) [onco-2 + sphere] the larva of the tapeworm contained within the external embryonic envelope and armed with six hooks; it may be found in the feces.

Medical dictionary. 2011.

Look at other dictionaries:

  • oncosphere — n. [Gr. onkinos, hook; sphaira, ball] (PLATYHELMINTHES: Cestoda) The shelled embryo; a hexacanth; the first larval stage …   Dictionary of invertebrate zoology

  • oncosphere — hexacanth; n. the six hooked larva of a tapeworm. If ingested by a suitable intermediate host, such as a pig or an ox, the larva will use its hooks to penetrate the wall of the intestine. The larva subsequently migrates to the muscles, where it… …   The new mediacal dictionary

  • oncosphere — variant of onchosphere …   Useful english dictionary

  • Онкосфера (Oncosphere, Hexacanth) — имеющая шесть присосок личинка ленточного червя. Если она попадает в организм какого либо ее промежуточного хозяина , например, в организм свиньи или вола, то использует эти присоски для прикрепления к стенкам его кишечника. Впоследствии личинки… …   Медицинские термины

  • ОНКОСФЕРА — (oncosphere, hexacanth) имеющая шесть присосок личинка ленточного червя. Если она попадает в организм какого либо ее промежуточного хозяина , например, в организм свиньи или вола, то использует эти присоски для прикрепления к стенкам его… …   Толковый словарь по медицине

  • CESTODES — Les Cestodes, souvent improprement appelés vers solitaires, sont des Plathelminthes endoparasites de l’intestin de Vertébrés, dépourvus de système digestif à tous les stades de leur développement. Leur corps, en général aplati, rubané, présente… …   Encyclopédie Universelle

  • Echinococcosis — Classification and external resources Echinococcus life cycle (click to enlarge) ICD 10 B …   Wikipedia

  • hexacanth — The motile six hooked first stage larva of cyclophyllidean cestodes; it emerges from the egg and actively claws its way through the intermediate host s intestine prior to development into the next larval stage; e.g., the h. of Taenia saginata,… …   Medical dictionary

  • Hymenolepiasis — DiseaseDisorder infobox Name = Hymenolepiasis Caption = ICD10 = ICD10|B|71|0|b|65 ICD9 = ICD9|123.6 ICDO = OMIM = DiseasesDB = 32212 MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = D006925 Hymenolepiasis is infestation by one of two… …   Wikipedia

  • procercoid — n. [Gr. pro, before; kerkos, tail; eidos, like] (PLATYHELMINTHES: Cestoda) The metacestode developing from the oncosphere, containing a body proper and caudal vestige of the oncosphere, the cercomere; see neotenic procercoid …   Dictionary of invertebrate zoology

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