单词	trophozoite
释义	trophozoite /ˌtrɒfə(ʊ)ˈzəʊʌɪt / /ˌtrəʊfə(ʊ)ˈzəʊʌɪt/ noun Zoology & Medicine A growing stage in the life cycle of some sporozoan parasites, when they are absorbing nutrients from the host.Ingested cysts hatch into trophozoites in the small intestine and continue moving down the digestive tract to the colon.... To measure parasite burden of winners and losers, we assessed the number of eugregarine trophozoites in a male's mid-gut by removing the entire gut carefully and making light microscope thin-section preparations. Exposure to bile is the primary stimulus for encystation, where trophozoites transform into cysts that pass out with the feces.
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