Presentasi platyhelminthes

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Presentasi platyhelminthes

  1. 1. Platyhelminthes
  2. 2. New Zealand Arthurdendyus Australia Australoplana
  3. 3. CIRI UMUM • • • • • • • • Lebih maju di bandingkan Porifera dan Coelenterata. Lapisan tubuh Triploblastik. Ukuran tubuh mikroskopis hingga 20 m. Tubuh simetri bilateral, pipih dan paling sederhana diantara hewan simetri bilateral. Tidak memiliki rongga tubuh (acoelomata). Pencernaan terdiri dari : mulut, faring, usus (tanpa memiliki anus). Tidak memiliki sistem sirkulasi, respirasi, dan ekskresi,hermaprodit. Habitat : air tawar, laut, tempat lembab, dalam tubuh hewan lain (parasit). (parasit)
  4. 4. Some Unique Characteristics Proglotids and scolex in Cestoda Rabdites in Turbellaria Combination of characteristics- flame cells and being acoelomates for example. Larva of each class are unique
  5. 5. Potition in animal kingdom Eumetazoa - animals with tissue Bilateria - have bilateral symmetry and are triploblastic. Protostomia - a group of animals whose mouth develops from the blastopore, and the mesoderm forms from an area near the blastopore.  Acoelomata - They have a true mesoderm which fills the original blastocoel between the outer epidermis and digestive tract.
  6. 6. TRIPLOBASTIK
  7. 7. Systems 1 Integumentary- Rhabdites and one cell layer epidermis in Turbellaria and usually ciliated; syncytial tegument in other classes. Skeletal - hydrostatic Muscle - longitudinal, transverse, and circular muscles are present. Digestive - incomplete with intracellular and extracellular digestion; no system in Cestoda.
  8. 8. Systems 2 Excretory - flame cells, or excretory tubes in Cestoda. Respiratory - no system, diffusion Circulatory - none, diffusion. Nervous - anterior ganglia, ventral ladder-like system (two lateral cords with transverse cords).
  9. 9. Systems 3 Endocrine - hormones produced by nervous system Reproductive - monoecious in most Well developed reproductive organs, mostly internal fertilization. Two of the parasitic classes have complex life cycles  Trematoda - miracidium, sporocyst, redia, cercaria, metacercaria (usually snail is secondary host.  Cestoda - oncosphere, cystercercius (bladderworm)
  10. 10. KLASIFIKASI Turbellaria (cacing berambut getar), silia pada permukaan tubuh digunakan untuk bergerak. Dugesia • Trematoda (cacing isap), alat isap digunakan untuk menempel dan menghisap makanan pada inangnya. •Clonorchis, Fasciola, Schistosoma •Cestoda (cacing pita), bentuk seperti pita tubuh terdiri dari bagian skoleks, leher, dan proglotit. Taenia, Dipylidium Echinococcus • Class Monogenea :No representatives
  11. 11. Class Turbellaria Planaria -Free-living flatworms with soft flattened bodies covered with ciliated epidermis which has special secreting cells called rabdites. Dugesia
  12. 12. Struktur tubuh turbilaria  Exhibit bilateral symmetry, acoelomate, and are triploblastic  Parenchyma tissue 24 Phylum Platyhelminthes
  13. 13. STRUKTUR MIRFOLOGI
  14. 14. STRUKTUR ANATOMI
  15. 15. PENCERNAAN MAKANAN DAN EKSRESI  Mouth is usually located at the anterior end or mid-body on ventral surface  Excretory system Contains flame bulbs 27 Phylum Platyhelminthes
  16. 16. SISTIM SYARAF Free-living species usually have a well- developed sensory system Parasites generally have less elaborate systems . 28 Phylum Platyhelminthes
  17. 17. SISTIM REPRODUKSI  Almost all are simultaneous hermaphrodites  Parasitic species (flukes and tapeworms) have complex lifecycles, with various hosts and several different larval stages  Incredible powers of regeneration 29
  18. 18. Regeneration  Many species posses remarkable powers of regeneration and repair wounds
  19. 19. Class Trematoda Flukes -oral and ventral suckers, no hooks, parasites, body with a syncytial tegument without cilia. Larva stages unique. Clonorchis Fasciola Schistosoma
  20. 20. Clonorchis Human liver fluke - has two intermediate or secondary host snail and fish. Human liver fluke Cerceria
  21. 21. Fasciola Life cycle Sheep liver fluke metacercaria on grass
  22. 22. Fasciola life cycle
  23. 23. Blackspot disease: Uvulifer sp.
  24. 24. Fasciola hepatica (sheep liver fluke) F. gigantica (human liver fluke)
  25. 25. Stages of Fluke Life Cycle Redia Eggs of Schistosoma Cercaria In Liver
  26. 26. Schistosoma Blood Flukes Cerceria usually infect by burrowing through skin.
  27. 27. BLOOD Schistosoma human egg freshwater snail FLUKE
  28. 28. Class Cestoda Tapeworms Have distinct head structure (Scolex) and reproductive units called proglottids. Do not have a digestive system. Larva are oncospheres and cysticerci (bladder worms) Taenia Dipylidium Echinococcus
  29. 29. Taenia Proglotid
  30. 30. STRUKTUR TUBUH A scolex attaches them to the inside of their host followed by a neck and a strobila (long segmented trunk). Individual segments are proglottids.
  31. 31. TUBUH CACING PITA
  32. 32. CACING PITA
  33. 33. BAGIAN KEPALA CACING PITA scolex Suckers/pengisap Rostelum/pengait
  34. 34. SIKLUS HIDUP Usually involves more than one host. Variable life cycles. Proglottid drops off and is excreted by definitive host. zygotes develop in environment. Zygote is ingested by second host and it encysts in tissues which are consumed by the definitive host.
  35. 35. Dipylidium (dog tape) Juveniles in flea and louse Note the two gential pores and reproductive systems in each proglottid. Proglottid
  36. 36. Echinococcus Hydatid cyst (cysticercus)- may scolices and enlarges to as large as a basketball. Often called sand. Only three proglottids

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