پاورپوینت در مورد Modes of transmission worms (2) - دانلود رایگان
دانلود رایگان
دانلود رایگان لینک دانلود و خرید پایین توضیحاتدسته بندی : پاورپوینتنوع فایل : powerpoint (..ppt) ( قابل ويرايش و آماده پرينت )تعداد اسلاید : 52 اسلاید قسمتی از متن powerpoint (..ppt) : Modes of transmission worms Direct transmitted helminthes ( Oxyur-H.nana ) Soil ‘’ ‘’ ( round worm,hook worm ) Meat ‘’ ‘’ ( tape worm ) Arthropod ‘’ ‘’ ( Filaria, Guinea worm ) Snail ‘’ ‘’ ( trematodes ) S.T.H Ascaris lumbricoides Trichuris trichiura Ancylostoma duodenal 3. Hookworm Necator americanus 4 . Strongyloides stercoralis -orientalis 5. Trichostrongylus spp. – clubrifermis . -vitrinus Introduction to helminth Helminth means worm. Their motile activity is accomplished by wriggling movement. The helminth of medical importance belong to 3 classes: Nematoda, Trematoda and Cestoda. Geohelminths refer to the helminths which complete their life cycles not requiring the processes of the development in intermediate hosts. They have only one host and a simple life cycle, such as ascarid, hookworm, pinworm and etc. Biohelminths refer to those that have to undergo the development in intermediate hosts to complete their life cycle , such as filaria, liver fluke, pork tapeworm and so on.