Microfilaria

Japanese: microfilaria
Microfilaria

…Males are about 40 mm long and 0.1 mm wide, with a coiled tail. Females are 65-100 mm long and 0.3 mm wide, and their uterus is filled with larvae wrapped in a thin egg membrane, which are then released as encapsulated larvae (microfilariae, 0.3 mm long). These microfilariae enter the bloodstream via the lymphatic system, but they appear periodically in the peripheral blood vessels at night. …

From [Filariasis]

…Also called thread worms. Adult worms are long and thin, and infest the lymphatic vessels (and nodes), blood vessels, subcutaneous tissue, and orbits of various vertebrates. They give birth to viviparous larvae (microfilariae), which are transmitted by blood-sucking insects. The main human parasitic species include the bancroftian worm, Brugia malayi , Onchocerca, and Loa loa . …

*Some of the terminology that mentions "microfilaria" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…雄虫は体長約40mm,体幅0.1mm,尾端はコイル状に巻いている。雌虫は体長65~100mm,体幅0.3mmで,その子宮内には薄い卵膜に包まれた子虫が充満しており,これらが被鞘幼虫(ミクロフィラリアmicrofilaria,体長0.3mm)として産出される。このミクロフィラリアはリンパ流を経て血流に現れるが,この現れ方は,周期的で,夜間,末梢血管中に出現する。…

【フィラリア】より

…糸状虫ともいう。成虫は糸状細長で,各種脊椎動物のリンパ管(および節),血管,皮下組織,眼窩(がんか)などに寄生し,胎生で被鞘幼虫(ミクロフィラリアmicrofilaria)を産出し,吸血昆虫によって伝播される。 人体寄生種のおもなものには,バンクロフトシジョウチュウ,マレーシジョウチュウBrugia malayi,オンコセルカ,ロアシジョウチュウLoa loaなどがある。…

※「microfilaria」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

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