Flatworms- cestoda (tapeworm) Flashcards
What is the repro system of cestoda
Hermaphroditic
What are the levels of tapeworm
Scrolex > Immature proglottids > mature proglottids> gravid proglottids
What are the two classes of cestoda
Pseudophyllidea
Cyclophyllidea
What is the difference between pseudophyllidea and Cyclophyllidea
Cyclo: true tapeworm
What are characteristics of the scolex of the cyclophyllideas
Armed or unarmed depending on hooks
Characteristics of proglottids of cyclophyllideans
No uterine pore
reproductive organs
What do cyclophyllidean eggs have
6 hooks
Hexicanth embryo
What is a cysticercoid
Single scrolex not invaginated
Invertebrate IH
What is cysticercus
single invaginated scrolex
vertebrae IH
Coenurus
Many invaginated scolices
Vertebrate IH
Hydatic cyst
broad capsules with many protoscolices
What’s a bothria
only in psuedo tapeworm
Characteristics of proglottids in pseudophyllideans
1 set reproductive organs
Uterine pore
Characteristics of eggs of pseudophyllideans
Operculated like a fluke
Float unlike a fluke
What are the characteristics of pseudophyllidean larve
Metacestode
Two main types