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L 3, Taenia saginata & Diphyllobothrium latum, Parasitology

 Lecture video (Part 1)

Lecture video (Part 2)

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MCQ

1-Cestodes are (rounded- segmented- pear) shaped worm

2- Cestodes are (separate sex – Hermaphrodites )

3- Gravid segment appear towards (scolex- neck- distal end) of cestode

4- Beef tape worm is a disease of (T.saginata – t.solium- ascaris)

5- Scolex of T.saginata adult worm has (2-3-4) suckers

6- Egg of T.saginata contain ( trixanth – tetra canth – hexacanth) embryo

7- Egg of ( taenia – Ancylostoma- ascaris) has radially striated shell

8- Larva stage of taenia is ( oval- pear- bladder) like

9- Habitat of T.saginata is ( jejunum- colon- liver)

10- D.host of T.saginata is ( dog- cattle- man)

11- I .host of T.saginata is( dog- cattle- man)

12- Infective stage of T.saginata is ( adult- egg- cesticercus)

13- Mode of infection of t.saginata is ( ingestion – inhalation- skin penetration)

14- The mature worm of T.saginata develop in (2-5-8) weeks

15- In case of T.saginata infection, there is moderate ( basophilia- Esinophilia-neutropenia)

17- (scolex- neck- gravid segment) may be seen only after effective ttt of t. Saginata

18- Drug of choice of T.saginata (Mebendazole- thiabendazole- niclosamide)

19- T solium is a ( beef- pork- fish ) tape worm

20- T solium scolex is ( oval-elongated- globular)

21- Scolex of t solium has (2-3-4) cup shaped suckers

22- The gravid proglottid of T.solium contain (less- more- same) lateral branches than T.saginata

23- I. Host of T.solium ( cattle- pigs- sheep)

24- Auto infection occur with ( t saginata- t solium- both)

25- Which of the following is used after ttt of T.solium to expel eggs out rapidly

( Mannitol- dextrose- saline purge)

26- Complication that occur in case of t.solium are due to

a- Toxins of adult

b- Intestinal perforation

c- Disintegration Of gravid and releasing egg free in lumen

27- Rostellum is present in scolex of ( t.saginata- t.solium- both)

28- Diphyllobothrium latum is mainly distributed in ( Tropical- egypt- america)

29- Adult of Diphyllobothrium has more than ( 200-300-400) proglottid

30- Scolex of Diphyllobothrium is ( globular – oval- almond)

31- The deep dorsoventral groove that present in scolex of Diphyllobothrium is called

(Rostellum- hooks- bothria)

32- Eggs of Diphyllobothrium is ( oval-round-pear) shaped

33- Shell of Diphyllobothrium egg is( striated- operculated- lacerated)

34- Larva of Diphyllobothrium is called ( levocercoid- pleocercoid- cysticercus)

35- Habitat of Diphyllobothrium is (colon- ilum- cecum)

36-1st intermediate host of Diphyllobothrium is (salmon- man- cyclops)

37- Infective stage of Diphyllobothrium is ( cysticercus- egg- pleocercoid)

38- Mode of infection of Diphyllobothrium is ( ingestion- auto infection- vector)

39- Ingestion of undercooked fish lead to infection with (t.saginata- t.solium- D.latum)

40- Ingestion of undercooked beef lead to infection with(t.saginata- t.solium- D.latum)

41- Ingestion of under cocked pork lead to infection with(t.saginata- t.solium- D.latum)

42- Type of anemia caused by Diphyllobothrium is (microcytic- macrocytic-normocytic)

43- Adult worm of Diphyllobothrium interfere with absorption of ( folic acid- vit B6-vitB12)

44- The nonspecific symptoms of Diphyllobothrium is due to all of the following except

a- Absorption of toxic secretion of proglottid

b- Mucosal irritation by worm

c- Intestinal perforation

45- Feces of infected patient by Diphyllobothrium contain ( larva- egg- adult)

Answers of MCQ

1- Segmented

2- Hermaphrodites 

3- Distal end

4- T saginata

5- 4

6- Hexacanth

7- Taenia 

8- Bladder

9- Jejunum

10-Man

11-Cattle

12-Cysticercus

13-Ingestion

14-8

15-Esinophilia

17-Scolex

18-Niclosamide

19-Pork

20-Globular 

21-4

22-Less

23-Pig

24-Solium

25-Saline purge

26-Disentegration of gravid

27-Solium

28-America

29-300

30-almond

31-Bothria

32-Oval

33-Operculated

34-Pleocercoid

35-Ilum-

36-Cyclops

37-Pleocercoid

38-Ingestion

39-Diphyllobothrium

40-Saginata

41-Solium

42-Macrocytic

43-Vit B12

44-Intestinal perforation

45-Egg


True or false

1- Cestodes are hermaphrodite ( )

2- Tenia saginata gravid proglottid is longer than broad ( )

3- Tenia saginata adult induce weak immune response ( )

4- Man act as dead end I .h after ingestion of tenia solium egg ( )

5- Diphyllobothrium has no gravid ( )

6- Taenia saginata causes pernicious anemia (  )

Answers of true or false

1-T

2-T

3-T

4-T

5-T

6-F

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