1- In class trematoda all of the following is correct except :a) Flat dorsoventrally . b) Usually has three suckers . c) Usually is hermaphrodite . d) Bilaterally symmetrical .

2- Cercaria of Heterophyes heterophyes is a) Furcocercous cercaria . b) Leptocercous cercaria . c) Microcercous cercaria . d) Parapleurolophocercous cercaria .

3- Halzoun is thought to be result of ingesting:a) Nymphs of Linguatula serrata . b) Encysted metasercaria of Fasciola species with fresh vegetables . c) Raw liver of sheep contain immature worms of Fasciola spp. d) A & Ce) All of the above .

4- The brown ant: Formica fusca is the second intermediate host of :a) Dicrocoelium dendriticum . b) Heterophyes heterophyes . c) Fasciolopsis buski . d) Schistosoma mansoni .

5- Complications of Heterophyes are:a) Cerebral haemorrhage.b) Myocarditis and heart failure.c) Pulmonary egg emboli.d) All of the above.

5 -Picture show egg of: a) Schistosoma haematobium .

b) Heterophyes heterophyes . c) Fasciola hepatica . d) Non of the above .

Metagoniums yokagawai 6 -Arrow pointed to………….…

7- Select the CORRECT statement:a) Fasciola eggs hatch in fresh water.

b) Heterophyes heterophyes eggs hatch in brackish water.

c) Schistosoma eggs are ingested by the snail intermediate host.

d) All of the above.

8- A 30 years old male patient with upper abdominal pain since 4 months with jaundice, splenomegaly and ascites. Abdominal ultrasound show something in the CBD . Stool examination revealed large sized eggWhat is the most probable diagnosis ?

9- Female Schistosoma haematobium oviposit their eggs in:a) Vesical and pelvic plexuses . b) Superior mesenteric veins . c) Inferior mesenteric veins . d) Non of the above . e) All of the above .

10- Schistosoma is an atypical trematode because:a) Eggs are non-operculatedb) Sexes are separate.c) All of the above.

8 -Suckers of Schistosoma mansoni female are ……….. and ovary situated in

………. of the body .

9- Which of the following is NOT true for Fasciola gigantica:

• a) Lateral sides are parallel.• b) Suckers are equal.

• c) Inner branches of intestinal caeca are T or Y shaped.

8 -Fasciola species egg is large size , oval in shape characterized by

presence of..…… ,thin shell and contain one cell-stage

embryo surrounded by …………cells.

15- A parasite that uses a host other than its usual one.a) Abberrant.b) Facultative. c) Obligate.d) Incidental.

16- The scientific name of the lancet fluke is?a) Metagonimus yokogawai.b) Paragonimus westermani.c) Dicrocelium dendriticumd) Fasciola hepatica.