flukes Flashcards
flukes are part of what group of parasites
Metazoans
Other names for trematoda
- Platyheminthes
- flatworms
- Digenean
Types of trematodes
- INTESTINAL
- LIVER
- PANCREATIC
- LUNG
- BLOOD
trematoda is greek for?
Perforated or with holes
flukes are part of what order?
Digenea
Digenea greek for:
Dis - double
Genos - race
appearance of flukes
flat and leaf like
except Schistosomes
Fluke have both male and female structures in them meaning they are?
hermaphrodites
except Schistosomes
Describe the reproductive organs of flukes
Well developed
Describe the eggs of flukes
operculated
except Schistosomes
flukes have how many IH
2
except Schistosomes
Schistosomes is greek for:
schitos - split
soma - body
A typical, group-specific body wall that covers flukes through which an active uptake of nutrients regularly occurs
tegument
_________ of any kind is always absent in flukes because it would hinder the feeding
cuticle
MOT of flukes
Oral/Ingestion
except Schistosomes
Infective Stage of flukes
Metacercaria
except Schistosomes
Alimentary canal is _______
incomplete
flukes release waste through the ______
tegument
All possess ___ suckers
2
except H. heterophyes
mehlis glands also known as?
Shell gland
Surrounds the ootype of flukes and is a part of the female reproductive organ
mehlis glands
Guides the ova out towards the passage ending in the uterus of flatworms
mehlis glands
its secretion lubricates the passage of uterus through which ova move
mehlis glands
It may play a part in eggshell formation
mehlis glands
glands cells that secrete nutrient material which is included into egg capsules
vitellaria
the worm’s muscular penis
cirrus
a pouch near the animal’s head where the penis is retained when not in used
cirrus sac
a structure that closes or covers an aperture (found in eggs)
operculum
Diagnostic stage:
eggs or adults
What kind of fluke is Fasciola hepatica
LIVER FLUKES
Final host of Fasciola hepatica
- humans
- carabaos
Fasciola hepatica
1st IH
- Lymnaea truncatula (Europe and North Asia)
- L. bulmoides (North America)
- L. tomentosa (Australia);
- Planorbidae
lymnaeid snails
Fasciola hepatica
do they have shoulders
no
Fasciola gigantica
common name
Tropical Liver Fluke
Fasciola gigantica
when compared to Fasciola hepatica, the adult worm is ________
longer
Fasciola gigantica
when compared to Fasciola hepatica, the shoulders are ________
less developed
Fasciola gigantica
when compared to Fasciola hepatica, the cephalic cone is _________
shorter
Fasciola gigantica
1st IH:
- L. auricularia (Asia)
- L. acuminata (Indian Subcontinent)
- L. natalensis (Africa)
Snail host of liver flukes in the philippines
- L. philippinensis
- L. auricularia rubiginosa
2nd IH of liver flukes in the philippines
- Ipomea obscura (morning glory or kangkong)
- Nasturtium officinale (watercress).
