CESTODES Flashcards
Gen. Characteristics of Cestodes
General Characteristics:
- Does not have a digestive tract
- Hermaphroditic
- Bilateral symmetry
- Segmented
coracidium
aquatic development of embryo
Cyclophyllidean species
Taenia spp. Dipylidium,
Hymenolepis, Raillietina,
Echinococcus
Pseudophyllidean
Diphyllobothrium,
Spirometra
T. solium adult specie can be distinguished. TRUE or FALSE?
false
Proglottids/Strobila of T. solium
7-15 lateral branches (dendritic
or fingerlike)
smallest tapeworm
Hymenolepis nana / dwarf tapeworm
Y shaped hooklets
Hymenolepis nana / dwarf tapeworm
IS of T. saginata
cysticercus bovis
dichotomous/ tree-like
T. saginata
has direct and indirect infective stages
H. nana / dwarf tapeworm
direct IS of H nana
Eggs
Indirect IS of H nana
cercocystis.cysticercoid larva
rat tapeworm
Hymenolepis diminuta
fan like arrangement of hook
Hymenolepis diminuta/rat tapeworm