Chapter 10: The Cestodes Flashcards
Which stage of Taenia saginata is usually infective for humans?
Cysticercus larva
The best direct diagnosis of Echinococcus granulosus infection in humans is made by identification of:
Hydatid cysts in tissue
The flukes and tapeworms parasitic in man belong to the phylum:
Platyhelminthes
What is the scientific name of Pork Tapeworm?
Taenia solium
What is the scientific name of Fish Tapeworm?
Diphyllobothrium latum
What is the scientific name of Beef Tapeworm?
Taenia saginata
What is the scientific name of Dwarf Tapeworm?
Hymenolepis nana
A tapeworm having small, pumpkin-seed segments with one genital pore on each other margin is:
Dipylidium caninum
Dipylidium caninum infection is acquired by accidental ingestion of:
Infected fleas
This is the larval form of Taenia spp.
Csyticerus
Head of a tapeworm
Scolex
Hexacanth embryo
Oncosphere
Acquired from animals
Zoonotic
Free-swimming larva of D. latum
Coracidium
Segment of a tapeworm
Proglottid
Develops from a procercoid larva
Sparganosis
Contains both male and female organs
Hermaphroditic
Series of proglottids
Strobila
Smaller cyst within a hydatid cyst
Brood capsule
The infective stage of H. diminuta for humans:
Cysticercoid larva
A primary differential feature between an H. nana egg and H. diminuta egg is:
Polar filaments in H. nana egg
The characteristics of the life cycle of H. nana that differentiates it from the other cestodes is:
Lack of an intermediate host
The egg of D. latum is unique among the cestodes in that it contains:
An operculum and terminal knob
