Order Strongylida

What are the characteristics of the Order Strongylida?

Direct life cycle, infective L3, Hypobiosis is L3/L4, Bursated male, and typical stronglye egg

What is the “average size” of a typical stronglye egg?

60 x 40 cm, thin shell oval
80 x 40 um, thin shell oval
130 x 80 um, thin shell oval
60 x 40 um, thin shell oval (correct)

All of the following are included in the Super family Ancylostomatoidea EXCEPT:

Uncinaria stenocephala
Stephanurus dentatus (correct)
Bunostomum spp
Ancylostoma braziliense

What are the 5 parasites in the super family Ancylostomatoidea?

Ancylostoma caninum, Ancylostoma tubaeforme, Ancylostoma braziliense, Uncinaria Stenocephala and bunostomum spp Signup and view all the answers

What are the parasites in the Superfamily Strongyloidea? (Hint: 8)

Strongylus vulgaris, Strongylus edentatus, Strongylus equinus, Cyathostomins, Oesophagostomum spp, Chabertia ovina, Stephanurus dentatus, Syngamus trachea Signup and view all the answers

Which of the following is a general characteristic of hookworms?

Teeth and cutting plates in buccal capsule (C) Signup and view all the answers

Immunity is limited in Superfamily Ancylostomatoidea

True (A) Signup and view all the answers

The predilection site in Superfamily Ancylostomatoidea is ________

Small intestine Signup and view all the answers

Match the PPP to the correct parasite

Strongylus Vulgaris = 6 months Strongylus edentatus = 11 months Strongylus equinus = 9 months Cyathostomins (small Strongyles) = 1.5-4 months (~8 weeks) Signup and view all the answers

Math the characteristic of the teeth to the correct parasite

Strongylus equinus = Pointy Strongylus edentatus = No teeth Strongylus vulgaris = Ear shaped teeth Cyathostomins (small strongyles) = Rectangular buccal capsule Signup and view all the answers

Math correct life cycle of Large Strongyles through horses.

Strongylus vulgaris = L4 Migration through cranial mesenteric artery Strongylus edentatus = L4 through portal vein, liver, abdominal tissues Strongylus equinus = L4 through direct migration through liver, pancreas, cecum Cyathostomins (small strongyles) = L3 can encyst in LI mucosa for up to 2.5 years Signup and view all the answers

Which of the following contributes to the transmission of large and small strongyles?

Per os (A) Signup and view all the answers

Math the following street name to the correct parasite

Gapeworm = Syngamus trachea Large mouthed bowel worm = Chabertia ovina Nodulular/pimply worm = Oesophagostomum spp Northern hookworm = Uncinaria stenocephala Signup and view all the answers

Where is the predilection site for Chabertia ovina?

Large intestine Signup and view all the answers

The clinical signs for an animal with Chabertia ovina are seen after the end of the PPP

False (B) Signup and view all the answers

What are the two major clinical signs in Chabertia ovina?

Anemia and Diarrhea Signup and view all the answers

What is the PPP for Oesophagostomum spp?

3-8 weeks Signup and view all the answers

For Oesophagostomum, it takes ____ days for the eggs to become an infective L3

10 (A) Signup and view all the answers

What is the predilection site for Oesophagostomum spp?

Large intestine Signup and view all the answers

What larval stage will arrest in the LI intestinal wall in Oesophagostumum spp?

L4 (C) Signup and view all the answers

What are the three diagnostics used to diagnose Oesophagostomum spp?

Clinical signs, fecal float and cultivate to L3, and necropsy Signup and view all the answers

Oesophagostomum spp are difficult to control in swine