hexacanth


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hex·a·canth

(hek'să-kanth),
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 before development into the next larval stage; for example, the hexacanth 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.
Synonym(s): oncosphere
[hexa- + G. akantha, hook or thorn]

hexacanth

(hek'sa-kanth) [Gr. hex, six, + akantha, hook, thorn]
The embryonic stage in the life cycle of the tapeworm that has six hooklets to penetrate the intestinal mucosa.
Synonym: oncosphere

hexacanth

the six-hooked spherical embryo found in certain tapeworms.
References in periodicals archive ?
N adults parasitic in body cavity (142) N body of adults polyzoic (143) N cercomer lost during ontogeny (144) L-La six hooks on larval cercomer (145) L-La excretory system reticulate in early ontogeny (146) La medullary portion of proglottids restricted (147) N hexacanth embryo hatches from egg, is ingested in water
(148) La second larval stage a procercoid (149) La third larval stage a plerocercoid (150) La protein embedments in epidermis of hexacanth (151)
the consequent lack of an embryophore) (156) La hexacanth larvae with unicellular protonephridium