Cestodes Flashcards
Outer covering of cestodes
Tegument
All cestodes require
Intermediate host
Tapeworm
Cestodes
Cestodes are segmented or unsegmented
Segmented
Head. For attachment (cestodes)
Scolex
False tapeworm
Pseudophyllidean
Cestodes. With or without digestive system
Without
Region for growth, where segment arises (Cestodes)
Neck
Body. Consist of group of segments (Cestodes)
Strobila
Man in Echinococcus granulosus infections are called
Intermediate accidental host
Infective stage of Taenia solium
Cysticercus cellulosae
Fleshy extension of scolex
Rostellum
True tapeworm
Cyclophyllidean
Detachment of gravid segment
Apolysis
Passing of gravid in Taenia solium
In groups
Pork tapeworm
Taenia solium
Infective stage of Taenia saginata
Cysticercus bovis
Common name of Hymenolepis nana
Dwarf tapeworm
Intermediate host of Hymenolepis nana though optional
Foeas
Beetle
Armed scolex.
T. Solium or T. Saginata
T. Solium
Beef tapeworm
Taenia saginata
Definitive hist of Hymenolepis nana
Human
Rodents
Fried egg appearance of polar filament
Hymenolepis nana
Common name of Hymenolepis diminuta
Rat tapeworm
Infective stage of Hymenolepis diminuta
Cysticercoid larvae
Definitive host of Hymenolepis diminuta
Rodents
Rats
Stain used for determining uterine branches
India ink
Accidental host of Hymenolepis diminuta
Man
Common name if Dipylidium caninum
Dog or cat tapeworm
Pumpkin seed
Cucumber
Double pored tapeworm
Infective stage of Dipylidium caninum
Cysticercoid larvae
Longest cestode
Diphyllobotrium latum
Smallest tapeworm in human
Hymenolepis nana
Intermediate host of Dipylidium caninum
Fleas
Beetle
Ribbon like
Cestodes
Definitive host of Dipylidium caninum
Dog
Cat
Definitive host of Echinococcus granulosus
Canine
Smallest tapeworm
Echinococcus granulosus
Significant characteristics of Dipylidium caninum eggs
Egg packets
Intermediate host of Diphyllobothrium latum
1st cyclops or copepod
2nd fishes
Definitive host of Diphyllobothrium latum
Man
Significant feature of gravid proglottids of Diphyllobothrium latum
Rosette shape
Diagnostic stage of Echinococcus granulosus
Hydatid cyst
Common name of Echinococcus granulosus
Dog or hydatid tapeworm
Most affected organs in Echinococcus granulosus infection
Liver
Lung
Anemia caused by Diphyllobothrium latum
Vit. B12 deficiency
Megaloblastic anemia
Characteristic of cestodes eggs
Hexacanth embryo
Oncosphere
Infective stage of Hymenolepis nana
Cysticercoid larvae
Cestodes are monoecious or diecious
Monoecious
Infective stage of Echinococcus granulosus
Egg
Significant feature of Diphyllobothrium latum eggs
Abopercular knob
Common name of Diphyllobothrium latum
Broad fish tapeworm
Y shaped long neck
Hymenolepis nana
Infective stage of Diphyllobothrium latum
Plerocercoid larvae