… A characteristic of the developmental history of the worm is that, unlike the worm, in principle (except for Echinococcus), there is no proliferation at the larval stage. The eggs are excreted with the feces, and develop inside the proglottid or in the outside world, becoming an onchosphere, a 6-hooked larva with six hooks. This is covered with one or two layers of membrane called the larval fistula, but some larvae further develop cilia, and in that case the larvae are called coracidium. … *Some of the terminology that mentions "onchosphere" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… ジョウチュウの発育史の特徴としては,キュウチュウと異なり原則として(エキノコックスを除き)幼虫の段階での増殖がないことが挙げられる。虫卵は糞便とともに排出されるが,片節内または外界で発育して,6本の鉤を有する六鉤(ろつこう)幼虫onchosphereとなる。これは幼虫被殻と呼ばれる1~2層の被膜に覆われているが,それにさらに繊毛を生ずるものがあり,その場合の幼虫をコラキディウムcoracidiumと呼ぶ。… ※「onchosphere」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
>>: Oncidium cheirophorum (English name) Oncidiumcheirophorum
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