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单词 trichinella
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Trichinella


Trichinella

 [trik″ĭ-nel´ah] a genus of parasitic nematodes (roundworms). T. spira´lis is a species found in the striated muscle of various animals, and causes trichinosis in humans who eat poorly cooked pork.

Trichinella

(trik'i-nel'ă), A nematode genus in the aphasmid group that causes trichinosis in humans and other carnivores. [Mod. L. fr. trichina + dim. suffix ella]

Trich·i·nel·la

(trik'i-nel'ă) A nematode genus in the aphasmid group that causes trichinosis in humans and carnivores. [Mod. L. fr. trichina + dim. suffix -ella]

Trichinella

(trik″ĭ-nel′ă) A genus of nematode worms belonging to the order Trichurida and the family Trichinellidae. They are parasitic in humans, hogs, rats, and many other mammals. TRICHINELLA SPIRALIS: Encysted in muscle tissue (×800)TRICHINELLA SPIRALIS

Trichinella spiralis

The species of Trichinella that commonly infests humans, causing trichinosis. Infection occurs when raw or improperly cooked meat, particularly pork and wild game, containing cysts is eaten. Larvae excyst in the duodenum and invade the mucosa of the small intestine, becoming adults in 5 to 7 days. After fertilization, each female deposits 1000 to 2000 larvae, which enter the blood or lymph vessels and circulate to various parts of the body where they encyst, esp. in striated muscle. See: illustrationillustration
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