monoecious Flashcards
Monoecious flukes: The eggs are supplied from the ___ gland are
fertilized within the ___
vitelline gland; uterus
what surround the shells?
menis glands
They should be shed in a suitable environment in order to
continue the life-cycle
MONOECIOUS FLUKES
Paragonium westermani common name
oriental lung fluke or lung fluke
distribution of paragonimus westermani
japan, korea, china, nepal, philippines
They are usually resides in pairs in the lungs
Para.w
color of paragonimus westermani
reddish brown
para.w adult active stage shape
spoon shaped
para.w adult preserved state shape?
ova, flattened, coffee-bean shapes
It has a spinous cuticle and suckers that are of
equal size
Para.w
They have 2 large testes in the posterior part of
the body
Para.w
Lobed ovary
○ Anterior to the testes
Para.w
extreme lateral fields
Vitellaria; para.w
Flattened operculum
para,w ova
Immature when oviposited
para.w ova
Immature when laid with a germ cell and many yolk cells
when oviposited
para.w
4 stages of P.westermani
Miracidium
Rediae
Cercaria
Metacercaria
habitat of Para.w
Lung pockets
infective stage of para.w
metacercaria
1st intermediate host of para.w
1st IH: snail of genera:
○ Hua (semisulcospira, Syncera and Thiara,
Pomatiopsis, Pomacea)
○ Brotia asperata (Philippines)
2nd IH of para.w
2nd IH:
○ freshwater crabs
○ Crayfish
Clinical manifestation of this disease is
Chronic bronchitis
Hemoptysis
abdominal and chest pains
Low grade fever, fatigue, and myalgia
Paragoniamiasis
disease of para.w
paragoniamiasis
Dyspnea means?
P, westermani
Shortness of breath or air hunger