Cestodes Flashcards
Commonly known as the broad fish tapeworm
Diphyllobothrium latum
This is a common parasite in the intestines of dogs and cats and occasionally infecting humans. It has several common names, the flea tapeworm, cucumber tapeworm or double-pored tapeworm.
Dipylidium caninum
This is commonly known as the dwarf tapeworm
Hymenolepis nana
Commonly known as the pork tapeworm.
Taenia solium
Commonly known as the beef tapeworm.
Taenia saginata
Known as dog tapeworm
Echinococcus granulosus
3 main parts of class cestoda
scolex, neck and strobila
scolex may have
suckers and a knob-like protrusion (rostellum) with or without
concentric rings of hooks for attachment to the host.
short neck is where their
proglottids, the
simplest unit of the strobila, proliferate
These proglottids gradually
increase in dimension and maturity
the further they are from the neck.
Cestodes body are covered by what
thick tegument
What is the function of the thick tegument
protects them from digestive enzymes
The members of class Cestoda do not possess
a digestive tract
Infective stage of Diphyllobothrium Latum
plerocercoid larva
Infective stage of Dipylidium caninum
cysticercoid larva,
Infective stage of hymenolepis nana
cysticercoid larvae
infective stage of taenia solium
cysticercus
infective stage of taenia saginata
cysticercus
infective stage of Echinococcus granulosus
embryonated eggs in feces
is the larval form of a tapeworm once it has been ingested by an intermediate host animal.
Oncosphere
a larval tapeworm at a stage in which the scolex is inverted in a sac, typically found encysted in the muscle tissue of the host.
Cysticercus
attach to the viscera wall of the small intestine, develop the adult tapeworm and produces eggs
Protoscolex
a form of asexual reproduction performed by most tapeworms and some cnidarians.
Strobilization
