| [Visitor (111.8.*.*)]answers [Chinese ] | Time :2020-03-27 | | Trichomonas cells are pear-shaped, with four anterior flagella, and the fifth is set on one side of the undulating membrane; a cell mouth and a backbone along the undulating membrane; a shaft (a rigid rod composed of cytoplasm) is used for Support, often protruding backwards. There are three types of trichomoniasis in humans; human trichomoniasis is parasitic in the intestine; trichomonas vaginalis is parasitic in the vagina; oral trichomoniasis is parasitic in the mouth. Trichomonas fetus can cause disease in cattle. |
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