Para Lec - Helminths Flashcards
classes of helminths
nematoda
cestoda
trematoda
classes of helminths
flukes
trematoda
classes of helminths
tapeworms
cestoda
classes of helminths
roundworms
nematoda
trematodes in venous system
schistosoma
trematodes in biliary tract
clonorchis, fasciola
trematodes in lungs
paragonimus
examples of cestodes (3)
Taenia saginata
Taenia solium
Hymenolepis nana
female and male in same worm
monoecious
classes of helminth
each segment contain a complete organ system
tapeworm
cestodes
classes of helminth
true roundworms
nematodes
classes of helminth
unsegmented
elongated
cylindrical in shape
nematodes
classes of helminth
not flat, without skeleteon
nematodes
why are nematodes distended if they have no skeleton
there’s fluid
sexes are separate
dioecious
classification of female adult worms (3)
oviparous
larviparous
parthenogenetic
classification of female adult worms
egg laying
oviparous
classification of female adult worms
larva releasing
larviparous
classification of female adult worms
can self-fertilize
parthenogenetic
ex of oviparous
Ascaris lumbricoides, Trichuris trichiuria, Enterobius vermicularis
ex of larviparous
Trichinella spiralis
ex of parthenogenetic
Strongyloides stercoralsi
describe posterior end of most female helminths
pointed
describe posterior end of most male helminths
curved
hairlike structure found in posterior end of males for copulation
copulatory spicule
midway ring structure found in females especially Ascaris
genital girdle or genital ring
5 stages of Ascaris lumbricoides
egg L1 = Rhabditiform larvae L2 = No designation L3 = Filariform larvae Adult worm
class of nematodes without chemoreceptors
class Aphasmidia
class of nematodes with chemoreceptors
class phasmidia
class Aphasmidia, parasitize small intestine
Trichinella spiralis
Capillaria philippinensis
class Aphasmidia, parasitize large intestine t
Trichuris trichiura
class phasmidia, parasitize small intestine (5)
Ancylostoma duodenale Ancylostoma ceylaniucum Necator americanus Ascaris lumbricoides Strongyloides stercoralis
animal hookworms that cannot complete its life cycle in man
Ancylostoma braziliense
Ancylostoma caninum
class phasmidia, parasitize large intestine
enterobius vermicularis
class phasmidia, parasitize tissues
Wuchereria bancrofti
Brugia malayi
filarial worms
Wuchereria bancrofti
Brugia malayi
class phasmidia, cause cutaneous larval migration
Ancylostoma braziliense
Ancylostoma caninum
Angiostrongylus cantonensis
cat hookworm
Ancylostoma braziliense
dog hookworm
Ancylostoma caninum
rat lungworm
Angiostrongylus cantonensis