Strongylidae, Stephanuridae, Synganimidae

Question 1

What is the common name of Strongylus spp?

Answer 1

Palisade or red worms of horses

Question 2

What are the general classifications of Strongylidae?

Answer 2

Well developed buccal capsule, leaf crown or corona radiata, and copulatory bursa

Question 3

Which species affects the cecum and colon of horses and has a buccal cavity containing 1 large tooth and 2 small teeth?

Answer 3

Strongylus equinus

Question 4

Which species has a special migratory phase in the liver of horses and is characterized by a buccal cavity devoid of teeth?

Answer 4

Strongylus dentatus

Question 5

Which Strongylidae species has well developed ear shaped teeth?

Answer 5

Strongylus vulgaris

Question 6

What is the main condition caused by Strongylus vulgaris that is fatal in nature?

Answer 6

Parasitic aneurysm

Question 7

What are the small strongyles known as?

Answer 7

Cythostomes

Question 8

What are the four genera of small strongyles?

Answer 8

Triodontophorus, Gyalocephalus, Cylicodontophorus, Cylicocyclus

Question 9

What are the nodular worms known as?

Answer 9

Oesophagostomum

Question 10

Which species is known as the large mouthed bowel worm?

Answer 10

Chabertia ovina

Question 11

What is the final host and predilection site of Chabertia ovina?

Answer 11

Sheep and goat, colon

Question 12

Where are Strongylus spp mainly found in animals?

Answer 12

Cecum and colon of horses

Question 13

What are the three genera of Strongylidae?

Answer 13

Strongylus, Oesophagostomum, Chabertia

Question 14

Identify at least four effects of Strongylus spp.

Answer 14

Verminous arteritis, aneurysm, organ infarction, thromboembolic colic

Question 15

What type of drugs are used for control and treatment of Strongylus spp?

Answer 15

Antithrombotic drugs

Question 16

What is a significant effect of wormy horses or small strongyles, particularly Triodontophorus spp?

Answer 16

Cyathostomiasis

Question 17

Which species can suck up to 10 ml of blood per day?

Answer 17

Strongylus equinus

Question 18

Which species are known as the nodular worm of pigs and ruminants?

Answer 18

Oesophagostomum

Question 19

What lesions do Oesophagostomum cause that interfere with absorption and bowel movement?

Answer 19

Pimply gut

Question 20

Which larval stage of small strongyles causes nodule formation?

Answer 20

L4 and L5

Question 21

What is the predilection site of Chabertia ovina?

Answer 21

Colon

Question 22

Which species are known as the plug feeders causing ulcers?

Answer 22

Strongylidae

Question 23

Which larval stage of C. ovina ingests plugs of mucosa and causes hemorrhage?

Answer 23

L5

Question 24

What is known as the kidney worm of pigs?

Answer 24

Stephanurus dentatus

Question 25

In which tissues is S. dentatus found?

Answer 25

Kidney, perirenal tissue

Question 26

What is the intermediate or paratenic host of S. dentatus?

Answer 26

Earthworm

Question 27

What is the mode of transmission of S. dentatus?

Answer 27

Ingestion, skin penetration, prenatal

Question 28

Describe the morphological characteristics of S. dentatus.

Answer 28

Cup shaped buccal capsule, large and stout worm, pinkish when fresh

Question 29

Which larval stage of S. dentatus causes cirrhosis and ascites in infected animals?

Answer 29

L4

Question 30

Which species are known as the gapeworm of poultry?

Answer 30

Syngamus trachea

Question 31

What is the pathogenesis of small strongyles?

Answer 31

Cyathostomiasis

Question 32

Which species are the plug feeders causing ulcers?

Answer 32

Strongylus

Question 33

Which species are controlled through the gilts only scheme?

Answer 33

Stephanurus dentatus

Question 34

What is the predilection site of nodular worms?

Answer 34

Small and large intestines

Question 35

Which larval stages are most involved in nodule formation?

Answer 35

L4 and L5

Question 36

In which animals are gapeworms found and what are the affecting sites?

Answer 36

Non aquatic birds, trachea

Question 37

What are the nodular worms affecting small ruminants?

Answer 37

Oesophagostomum radiatum

Question 38

Describe the shape of the buccal capsule of nodular worms.

Answer 38

Cylindrical and narrow

Question 39

Describe the buccal capsule and leaf crown of Chabertia ovina.

Answer 39

Bell shaped buccal capsule, has double row of leaf crowns

Question 40

Which species are permanently in copula forming a Y shape?

Answer 40

Syngamus trachea

Question 41

What are the affected sites of the kidney worm of pigs?

Answer 41

Ureter, kidney, renal pelvis, perirenal fat

Question 42

Which species have well developed epaulletes?

Answer 42

Stephanurus dentatus

Question 43

What are the nodular worms of cattle, buffalo, zebu, and wild large ruminants?

Answer 43

Oesophagostomum radiatum

Question 44

Which of the nodular worms do not cause nodule formation?

Answer 44

Oesophagostomum venulosum

Question 45

What are the nodular worms of the Philippine monkey?

Answer 45

Oesophagostomum longicaudum

Question 46

What are the nodular worms of gorillas, chimpanzees, and other monkeys?

Answer 46

O. stephanostomum

Question 47

Which species cause tracheitis?

Answer 47

Syngamus trachea

Question 48

What is known as the gapeworm of anseriform birds?

Answer 48

Cyathostoma bronchiale

Question 49

Which species are erratic parasites in the liver and other abdominal and thoracic organs?

Answer 49

Stephanurus dentatus

Question 50

Describe the morphology of S. dentatus based on their buccal capsule, vulva, leaf crowns, and body.

Answer 50

Cup shaped buccal capsule, vulva near the anus, has epaulettes, large and stout, pinkish

Question 51

Other strongyloids present in primates

Answer 51

Macropicola, Hypodontus

Question 52

Other strongyloids present in Ostriches

Answer 52

Codiostomum struthionis