PPT-Helminths ( Trematoda )

AssisProfDr Suhad Faisal Hatem Helminths Trematoda Helminth commonly known as parasitic worms are large multicellular organisms which when mature can generally be seen with the naked eye including . VMP . 920. Infection & Immunity II. Veterinary . Parasitology. Fasciola. hepatica. Large, leaf-like, liver/bile duct flukes . Small anterior suckers . Dendritic Intestines, Testes & Ovary. . .. Introduction/Background. Scientific classifications. Nematodes. Some species: . . A.lumbricoides,N.americanus. and . A.duodenale. Morphological properties. Pathogenesis. Epidemiology. Clinical manifestations. Present studyGoldberg Crane 1911Stunkard 1923Total body length10144 8800 113006600 80007000 10000Body width851 785 890855500 750Oral sucker length452 322 592262240 290Oral sucker width427 310 The Fungi. The . Fungi. A. Once thought to be plants but the cell wall is made of chitin rather than cellulose and these are not photosynthetic. B. Instead they are saprobic organisms that frequently live off of dead organic matter. Assistant Prof. Dr. . Ahmed A. Mohammed . Lecture 5. Helminths. • . Special adaptations for parasitic mode of life and for species survival are more apparent in the helminths than in the protozoa. . Medical Parasitology. Prof. Dr. Ahmed Ali Mohammed. Introduction to Helminths. The term “Helminths” mean “worms” in parasitology. It refers to the parasitic worms, those comprises two large phyla: Phylum Platyhelminths (flat worms) and Phylum Nemathelminths or Nematoda (true round worms), and two smaller ones: Phylum Nematomorpha (hair snakes) and Phylum Acanthocephala (thorny-headed worms), in addition to one class group from phylum Annelida, the class Hirudinea (Leeches)..  . The term . “. Helminths. ”. mean . “worm”. , it is broadly interpreted; it refers to any worm-like animal, in a more restricted sense it refers to a parasitic worm, those comprises two large phyla:. ( fluke ). . flat, leaf-like, cylindrical, ….. size: couple of millimeters to few centimeters. two oral and ventral cup-shaped suckers. Simple digestive system. Hermaphrodite or diocious (separate, male & female). Helminthes are the animals belonging to phyla Platyhelminthes and . Nemathelminthes. .. Soft bodied, . dorso. -ventrally flattened and bilaterally symmetrical. .. Classes. . Trematoda. . Cestoda. . termasuk. . dalam. . filum. . Platyhelminthes. Umumnya hidup sbg parasit pada vertebrata. Morfologi. . umum. :. Pipih. . seperti. . daun. , . tidak. . bersegmen. Tubuh di tutup kutikula, yang disekresikan o/ sel2 dibawahnya. TREMATODA hATI. Fasciola hepatica. Hospes : kambing dan sapi, kadang-kadang manusia.. Penyakit : fasioliasis. Penyebaran geografik : Amerika Latin, Perancis, negara-negara sekitar Laut Tengah.. Helminths. (from the Greek . Helmins. , . meaning worm) include three groups of parasitic worm, large . multicellular. organisms with complex tissues and organs.. Intestinal human nematodes:. Diseases are caused by adult nematodes living in the human gut. . Gh. . . Fajir. . Helminthic. Parasites of Humans . •3 groups of helminthes . •. Cestodes. -tapeworms . •. Trematodes. -flukes . •Nematodes-roundworms . Cestodes. Trematodes. Nematode. Ribbon-like. Bindhusaran. , Associate professor. DEPT OF PATHOLOGY, SKHMC, Kulasekharam. Trematodes . Posses two suckers which appear like holes. ( . trematos. – pierced with holes). Leaf shaped and . unsegmented.