Parasitology HOST

Question 1

4 nematodes within the small intestine of cattle

Answer 1

1) Strongyloides papillosus
2) Cooperia spp. (C. oncoptia, surrabada, pectinate, punctate)
3) Nematodirus spp. (N. battus, hleyetinaus)
4) Bunostomum phlebotomum

Question 2

1 nematode within bronchi/trachea and 1 in skin of cattle

Answer 2

Bronchi/Trachea
1) Dictyocaulus viviparus
Skin
1) Pelodera (Rhabditis) strongyloides

Question 3

List 4 nematodes within abomasum of cattle

Answer 3

1) Haemonchus placei (large – 3cm)
2) Haemonchus contortus (rare in cattle)
3) Ostertagia ostertagi
4) Trochostrongylus axei (very small – 5mm)

Question 4

List 2 nematodes within large intestine of cattle and specific location

Answer 4

1) Oesophagostomum radiatum (colon and caecum)

2) Chabertia ovina (coiled colon)

Question 5

List 4 nematodes within large intestine of sheep and specific location

Answer 5

1) Trichuris ovis (Large – 8cm, caecum)
2) Oesophagostomum venulosum (caecum)
3) Oesophagostomum columbianum (colon and caecum)
4) Chabertia ovina (coiled colon)

Question 6

List 1 nematodes within alveoli, small bronchi and trachea in sheep

Answer 6

Alveoli
1) Muellerius capillaris
(non-pathogenic to sheep, pathogenic to goats)
Small bronchi/bronchioles
1) Protostrongylus rufescens
Bronchi/Trachea
1) Dictyocaulus filaria (very large – 10cm)

Question 7

List 4 nematodes within abomasum of sheep

Answer 7

1) Haemonchus contortus (largest – 3cm)
2) Haemonchus placei (rare in sheep)
3) Ostertagia spp. (O. circumcinta, trifurcate)
4) Trichostrongylus axei (very small 5mm)

Question 8

List 5 nematodes within small intestine of sheep

Answer 8

1) Trichostrongylus spp. (T. colubriformis, vitrines, Rugatus)
2) Strongyloides papillosus
3) Cooperia spp. (C. curticei)
4) Nematodirus spp. (N.spathiger, filicolis, abnormalis, battus)
5) Bunostomum trigonocephalum

Question 9

List 1 nematodes within trachea, small intestine and stomach of horse

Answer 9

Trachea
1) Dictyocaulus arnfieldi
(large – 6cm)
Small intestine
1) Strongyloides westeri
Stomach
1) Trichostrongylus axei
(small – 5mm)

Question 10

List 7 nematodes of large intestine of horse

Answer 10

1) Cyathostomum spp
(sub-clinical is common) 
2) Craterostomum spp
3) Oesophagodontus robustus
4) Triodontophorus spp
5) Strongylus vulgaris (2 teeth)
6) Strongylus equinus (4 teeth)
7) Strongylus edentates (no teeth)

Question 11

List 1 nematode within bronchi and kidney of the pig

Answer 11

Bronchi
1) Metastrongylus spp. 
(M. apri, salmi, pudendotectus) 
Bronchi
Kidney
1) Stephanurus dentatus

Question 12

List 2 nematodes within stomach of pig

Answer 12

Stomach
1) Hyostrongylus rubidus
2) Trichostrongylus axei
(small – 5mm)

Question 13

List 3 nematodes within small intestines of pig

Answer 13

1) Necator suillus
2) Ancylostoma duodenale*
3) Strongyloides ransomi*

Question 14

List 2 nematodes within large intestines of the pig

Answer 14

1) Oesophagostomum dentatum

2) Oesophagostomum quadrispinulatum

Question 15

List 1 nematode within trachea and skin of dog

Answer 15

Trachea and bronchi
1) Oslerus osleri
Skin
1) Pelodera (rhabditis) strongyloides

Question 16

List 2 nematodes within lungs of dog

Answer 16

1) Angiostrongylus vasorum
(pulmonary arteries)
2) Filaroides hirthi
(terminal bronchioles)

Question 17

List 4 nematodes within small intestines of dog

Answer 17

Small intestine
1) Ancylostoma caninum (3 pairs of teeth)
2) Acylostoma braziliense (1 pair of teeth)
3) Uncinaria stenocephala (cutting blades)
4) Strongyloides stercoralis
(Very small – 2mm)

Question 18

List 1 nematode within lung/alveoli and stomach of the cat

Answer 18

Lung/alveoli
1) Aelurostrongylus abstrusus
Stomach
1) Ollulanus tricuspis
(Very small – 1mm)

Question 19

List 4 nematodes within small intestine of the cat

Answer 19

1) Strongyloides spp.
(S. cati, stercoralis
2) Ancylostoma tubaeformae (3 pairs of teeth)
3) Ancylostoma braziliense (1 pair of teeth)
4) Uncinaria stenocephala (cutting blades)

Question 20

List 1 nematode within trachea and gizzard of birds

Answer 20

Trachea
1) Syngamus trachea
Gizzard
1) Amidostomum anseris
(geese and wild ducks)

Question 21

List 2 nematodes within small intestine of birds

Answer 21

1) Strongyloides avium*

2) Trichostrongylus tenuis