hepatica Schistosoma Fasciola hepatica large and broadly flattened measuring up to 30 mm long and 15 mm wide The anterior end is coneshaped Extensive branching ID: 790042
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Slide1
Trematodes
Lab:
6
Fasciola
hepatica
Slide2Schistosoma
Slide3Fasciola hepatica
Slide4Slide5large and broadly- flattened,
measuring up to
30 mm long and 15
mm wide.
The anterior end is
cone-shaped.
Extensive branching
of: intestinal
ceca, testes and vitelline follicles.
Fasciola
hepatica
A. Adult:
Slide6Slide7Fasciola hepatica A: Adult
Fasciola
hepatica
Adult 20 – 30 mm L. X 8 – 13 mm
B,
( grey – brown )
Carmine s.
Slide8Fasciola hepatica
B-Ovum
Large ,
Single celled
Unembryonated
with operculum
Slide9Slide10Fasciola hepatica C-
Miracidium
Ciliated,
Swimming in water
Many celled.
Slide11Fasciola hepatica
D-
Redia
Sac - like structure with germ cells,
Clusters
of germ cells differentiate
into daughter
redia or cercaria
Slide12Fasciola hepatica
E
.
Cercaria
:
Anterior trunk
Posterior tail,
Leaving snail to
swim
in water.
Slide13Fasciola hepatica
F.
Metacercaria
:
Globose
structures
Encysted on aquatic vegetation.
Slide14Rediae
sporocysts
Miracidium
Cercaria
Metacercaria
stages from
Fasciola
hepatica
life cycle
Egg