cestodes

Cestodes

ABCDEFTapewormsribbon-like platyhelminths

live in the intestinal tract of vertebrates (as adults)

live in the tissues or body cavities of various IH(as larvae)MorphologySCOLEX

attachment organ

attach to intestinal mucosa at the anterior end

+/- suckers, grooves (bothria), or a rostellum with hooks

STROBILA

body of the worm

neck region + series of proglottids that undergo sequential development at the posterior end

immature, mature, gravid stagesMorphologyPROGLOTTIDSwith complete set of male and female gonadscapable of producing fertile eggsEGGSmay be differentiated from other helminths by the presence of a six- hooked embryo (except Diphyllobothrium spp.)TWO ORDERSOrder PseudophyllideaOrder CyclophyllideaOrder PseudophyllideaDiphyllobothrium latumSpirometra spp.Order CyclophyllideaTaenia saginata Taenia solium Hymenolepis nanaHymenolepis diminuta Dipylidium caninum Raillietina garrisoniEchinoccocus granulosusThank you!ABCDEF