helminthology 1 Flashcards
Introduction
what is the adult stage ?
is a stage that happens in definitive host / sexual reproduction happen in it
what is larva stage ?
happen in the intermidiate host / asexual reproduction
what is the other name of flukes?
trematoda
helminth is classified based on what?
morphology and movement and transmission
which phylum is called round worms?
nemathleminthes
what is the other name of tapeworm?
cestoda
taenia saginata belong to which class?
cestoda
give examples on platyhelminth
cestoda /trematoda
what is the other name of soil transmitted?
geohelminthes
list some soil transmitted helminthes
1- ascaris lumbricoides
2-hook worms /
-ancylostoma duodenal
-necator americanus
-strongyloides stercoradis
-trichostrongylis spp
-trichuris trichiura
ascaris lumbricoides belong to which class ?
nemathelminth
give examples of snail transmitted helminthes
1-fasciola spp
2-schistosoma spp
3-dicrocoelium
4-clonorchis
5-opisthochis
6-paragonimus
7- heterophyes
8- fasciolpsis
give examples on meat transmitted helminthes
1-taenia spp
2- trichinella spp
3-diphyllobothrium
list some direct transmitted helminthes?
1-enterobius vermicularis
2-hymenolopis nana
give examples on endoparasites?
protozoan and helminth
name some arthropods transmitted helminthes?
1-guinea worm
2-filarial nematodes
What is the general morphology of cestoda?
1_ scolex with hooks on rostellum
2neck
3 strobila/proglottids
4ni digestive system
5 tegument(absoption tract)
6_reproductive system
What is the reproductive system of cestoda?
Hermaphroditic ,have both male and female organsin mature proglottids
What on the scolex?
Suckers and hooks
What platyhelminthe does look like ribbon?
Cestoda
Where is the exact location of hooks/suckers?
On the rostellum of the scolex
Give general characteristics of trematoda
1_ dorsoventrally flattened (leaf)
2_unsegmented
3incompelet digestive tract
4 symmetrical
5blind alimentary canal(no anus,one opening)
6 two suckers for attachment
7- hermaphroditic except genus schistosoma
Which trematoda is not hermaphroditic?
Genus schistosoma
Describe trematoda digestive system
*Blind
*Single opening,no anus
*Incomplete