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, which penetrates the intestine of a cow that ingested the egg, then forms a cysticercus in the muscles of the intermediate host. SYN: oncosphere. [hexa- + G. akantha, hook or thorn]

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n.

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hexa·canth (hek″sə-kantґ) having six hooks, such as an oncosphere.

Medical dictionary. 2011.

Look at other dictionaries:

  • hexacanth — adj. [Gr. hex, six; akantha, thorn] (PLATYHELMINTHES: Cestoda) A six hooked mature embryo, or larva, hatching from the egg; an onchosphere …   Dictionary of invertebrate zoology

  • hexacanth — n. (Entomology) larva of a tapeworm …   English contemporary dictionary

  • hexacanth — hex·a·canth …   English syllables

  • hexacanth — n.; see oncosphere …   The new mediacal dictionary

  • hexacanth — …   Useful english dictionary

  • hexacanth embryo — hex·a·canth embryo hek sə .kan(t)th n ONCOSPHERE * * * the six hooked embryo, or onchosphere, characteristic of most tapeworms of humans and domestic animals …   Medical 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

  • 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

  • Embryo — The organism in the early stages of growth and differentiation from fertilization to, in humans, the beginning of the third month of pregnancy. After that point in time, it is termed a fetus. * * * 1. An organism in the early stages of… …   Medical dictionary

  • embryophore — A membrane or wall around the hexacanth embryo of tapeworms, forming the inner portion of the eggshell. In the genus Taenia, the e. is exceptionally thick, with radial striations that form a highly protective structure; in the …   Medical dictionary

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