GENERAL CHARACTERISTICS

Question 1

general characteristics of ASCARIDIDAE

Answer 1

One of the largest nematode
White opaque worms that inhabit SI
No buccal capsule
Mouth surrounded by 3 lips
Thick-shelled egg containing L2

Question 2

General Classification of Strongyloididae

Answer 2

• Rhabditiform or filariform esophagus
• viviparous or ovoviviparous female
• parasitic females are small (2-9 mm)
• free-living or parasitic generation may be produced
• non-parasitic generation may produce parasitic generation

Question 3

General characteristics of Capillaria (Hairworms)

Answer 3

✓ Posterior part is not
conspicuously thicker than the anterior part

Question 4

Life cycle of Pearsonema spp.

Answer 4

Indirect

Question 5

Life cycle of Calodium spp..

Answer 5

Unusual

Question 6

General Classification of STRONGYLIDAE

Answer 6

• Well developed buccal capsule
• Bears leaf crown or corona radiata
• Formerly called palisade worms

Question 7

Strongylus equinus General classification

Answer 7

✓ buccal cavity contains 3 teeth - 1
large and 2 small.
✓ Mature adult worms are 5cm long

Question 8

Strongylus edentatus general characteristics

Answer 8

✓ buccal cavity is devoid of teeth
✓ Mature adult worms are 4-5cm long

Question 9

Strongylus vulgaris general characteristics

Answer 9

✓ buccal cavity contains 2 earshaped teeth
✓ Mature adult worms are about 2 cm long

Question 10

TRICHOSTRONGYLIDAE
General Classification

Answer 10

• buccal capsule is absent or very small
• no leaf crown and no teeth

Question 11

Cooperia spp. General classification

Answer 11

Watch-spring like posture

Question 12

Characteristics of Roundworms

Answer 12

1. Cylindrical in shape
2. GI tract is present
3. Unisexual
4. Direct or indirect life cycle
5. Bosy cavity is present which is filled with fluid
6. Unsegmented

Question 13

General characteristics of TRICHURIDAE
(Whipworms)

Answer 13

• About 30-50 mm
• Spear-like projection at the anterior
end for anchorage; feed by means of
their oral stylets
• The egg is lemon or barrel-shaped
• direct life cycle with very resistant
infective egg
• Anterior is slender while the posterior is thicker

Question 14

General characteristics of Capillaria (Hairworms)

Answer 14

• Male has an ensheathed spicule
• Female bears a protrusible vulva
• Egg is colorless, more barrel-shaped and
polar plug do not project as far

Question 15

Strongylus spp. General characteristics

Answer 15

• Found in the cecum and colon of horses
• Well developed buccal capsule, leaf crown, and copulatory bursa

Question 16

Stephanurus dentatus general characteristics

Answer 16

• Cup shaped buccal capsule
• Has epaulletes
• Large, stout worm
• Pinkish in color when fresh

Question 17

Blood red color when fresh

Answer 17

Dioctophyma renale “Giant Kidney Worm”