SUMMATIVE TEST

Question 1

small genital primodium

Answer 1

Hookworm L1 larva

Question 2

pointed tail

Answer 2

Hookworm L3 larva

Question 3

large genital primodium

Answer 3

Threadworm L1 larva

Question 4

notched tail

Answer 4

Threadworm L3 larva

Question 5

MOT is ingestion of foods contaminated with embryonated egg

Answer 5

pinworm
whipworm
giant intestinal roundworm

Question 6

The layer of ascaris egg missing if it is decorticated and fertilized.

Answer 6

albuminous layer

Question 6

Free living form is observed in this species of nematodes.

Answer 6

S. stercoralis

Question 7

Which parasite is not included in this series in terms of development?
A. T. trichiura
B. Ascaris lumbricoides
C. S. stercoralis
D. Hookworms

Answer 7

C. S. stercoralis

Question 8

Which of the following is true for nematodes?
A. monoecious
B. segmented
C. hermaphrodite
D. has functional nervous system

Answer 8

D. has functional nervous system

Question 9

Which of the following is true for hookworms?
A. dental patterns can differentiate male and female species
B. found in small intestine unattached
C. female has copulatory bursa
D. eggs are segmented when passed

Answer 9

D. eggs are segmented when passed

Question 10

The rhabditiform larva of this parasite has a short buccal cavity and a large genital primordium

Answer 10

B. Threadworm

Question 11

A negative DFS for Ascaris egg may mean any of the following
A. all female worm population
B. immature male worm
C. all male worm population
D. female worms not fertilized

Answer 11

C. all male worm population

Question 12

Strongyloides life cycle differs from that of hookworms because of the following:
A. mode of transmission
B. L3 is the infective stage
C. heart and lung migration
D. free-living adult

Answer 12

D. free-living adult

Question 13

The helminth that may cause severe anemia in heavy worm infection.
A. N. americanus
B. S. stercoralis
C. T. trichiura
D. A. lumbricoides

Answer 13

A. N. americanus

Question 14

Method of diagnosing society worm infection.

Answer 14

A. Cellulose tape swab

Question 15

Morulla ball/egg cell stages is the diagnostic stage
A. Threadworm
B. Rat lung worm
C. Hookworm
D. Pudoc worm

Answer 15

C. Hookworm

Question 16

Harada-Mori technique will recover L3 stage and this will differentiate N. americanus from A. duodenale.
A. True
B. False

Answer 16

B. False

Question 17

Eggs of Trichuris trichiura are embryonated when oviposited.
A. True
B. False

Answer 17

B. False

Question 18

Larva currens is caused by:
A. Ascariasis
B. Cutaneous larva migrans
C. Strongyloidiasis
D. Toxocara canis

Answer 18

C. Strongyloidiasis

Question 19

All of the following nematodes are oviparous EXCEPT:
A. Roundworm
B. Strongyloides
C. Hookworm
D. Enterobius

Answer 19

B. Strongyloides

Question 20

Common name of Trichuris trichiura is:
A. Pinworm
B. Roundworm
C. Hookworm
D. Whipworm

Answer 20

D. Whipworm

Question 21

Ascaris infects humans by:
A. Penetration of skin by infective larvae
B. Ingestion of unembryonated eggs present in contaminated food and water
C. Ingestion of embryonated eggs present in contaminated food and water
D. Autoinfection

Answer 21

C. Ingestion of embryonated eggs present in contaminated food and water

Question 22

Which of the following is the causative agent of “creeping eruption”?

Answer 22

Ancylostoma braziliense

Question 23

Tripartite dorsal rays are seen in ____. Answer all that apply.
A. Necator americanus
B. Ancylostoma braziliense
C. Ancylostoma duodenale
D. Ancylostoma caninum

Answer 23

A. Necator americanus
B. Ancylostoma braziliense
C. Ancylostoma duodenale
D. Ancylostoma caninum

Question 24

Bursa is supported by short stubby rays.

Answer 24

Ancylostoma braziliense

Question 25

The head is curved opposite to the curvature of the body.

Answer 25

Necator americanus

Question 26

Transverse striations on the sheath in the tail region of L3 larva.

Answer 26

Ancylostoma duodenale

Question 27

The buccal spears of the filariform larva are conspicuous.

Answer 27

Necator americanus

Question 28

The egg has bluntly rounded ends and a single thin transparent hyaline shell.

Answer 28

All hookworms

Question 29

fertilization membrane

Answer 29

vitelline membrane

Question 30

glycogen membrane

Answer 30

chorionic layer

Question 31

outer layer

Answer 31

albuminous

Question 32

refractile lecithin granules are found in

Answer 32

albuminous

Question 33

STHs include

Answer 33

whipworm Giant intestinal roundworm

Question 34

This is capable of larval migration.

Answer 34

Giant intestinal roundworm

Question 35

Rectal prolapse is associated with

Answer 35

whipworm

Question 36

Female worm has pointed posterior end.

Answer 36

pinworm whipworm Giant intestinal roundworm

Question 37

“Worm ball” or entangled adult worm is associated with _

Answer 37

Giant intestinal roundworm

Question 38

Autoinfection is possible.

Answer 38

pinworm threadworm

Question 39

Diagnostic stage is ova.

Answer 39

pinworm whipworm Giant intestinal roundworm hookworm

Question 40

long buccal cavity

Answer 40

Hookworm L1 larva

Question 41

short esophagus

Answer 41

Hookworm L3 larva

Question 42

short buccal cavity

Answer 42

Threadworm L1 larva

Question 43

long esophagus

Answer 43

Threadworm L3 larva