parasitology- order strongylida

superfamily Trichostrongyloidea

which superfamily of the order Strongylida had no buccal capsule?

Ostertagia

Cooperia

Haemonchus

Marshallagia

Nematodirus

which nematodes in the family Trichostrongylidae are in the abomasum/small intestine of ruminants?

Hyostrongylus

which nematodes in the family Trichostrongylidae are in the stomach of swine?

abomasum; ruminants

O. ostertagi- cattle

T. circumcincta- sheep/goats

Ostertagia/Teladorsagia is located in the ______ of ______

superfamily Stongyloidea

which superfamily of the order Strongylida has a buccal capsule?

a copulatory bursa and 2 spicules

males in the order Strongylida have ____

strongiliform

what shape esophagus do nematodes of the order Strongylida have?

big

abomasum; ruminants

H. contortus- small rum

H. placei- cattle

is Haemonchus big or small? it is located in the _____ of _____

Haemonchus

which nematode of the order Strongylida is known as the "barber's pole" worm?

Haemonchus

which nematode of the order Strongylida is this?

abomasum of ruminants

Marshallagia marshalli is in the ____ of ____

abomasum; ruminants

Trichostrongylus axei is in the ____ of____

cecum; birds

Trichostrongylus tenuis is in the ____ of____

small intestine; ruminants

C. curticei- sheep and goats

C. punctata and pectinata- cattle

Cooperia is in the ____ of ____

Nematodirus

which nematode of the order Strongylida is this?

small intestine; cattle

Nematodirus helvetianus lives in the ____ of_____

nematodirus

this egg belongs to ...

direct

1. L1 develops in egg in enviro. and hatches

2. L1-L2-L3

3. DH eats L3

4. L3's shell dissolves

5. GI mucosa: L3-L4

6. GI lumen: L4-L5- adult

what is the life cycle of nematodes of the family Trichostrongylidae?

L4

what stage in the life of family Trichostrongylidae can it become hypobiotic?

no

does haemonchus have a buccal capsule?

H. contortus- small ruminants

H. placei- cattle

what are the 2 species of haemonchus and what animal do the infect?

Nematodirus

which is the least prolific of the family Trichostrongylidae with less than 16 blastomeres in its egg?

in the stomach of pigs

where is Hyostrongylus rubidus located?

Stephanurus dentatus

which nematode is located in the kidney of pigs?

trachea of birds

where is Syngamus trachea located? in what animal?

Strongylus

Triodontophorus

Cyathostomins

which infect the GI tract of equines?

in the liver and pancreas of equine (larval stages)

in the caecum and colon of equine (adult)

where is Strongylus equinus located?

adults lay their eggs in the trachea of a bird, where they are expectorated and swallowed and then excreted with feces. then the new DH can either ingest the eggs, larva, or a paratenic host (worm, insect), all as L3. it is absorbed into the blood, reaches the lung as L4 and the bronchi as L5. Then it mates in the trachea.

describe the life cycle of Syngamus trachea

Syngamus trachea

this represents the life cycle of what parasite?

yes

does Syngamus trachea have a buccal capsule?

Syngamus trachea

what parasite infects the trachea of birds?

Craterostomum

Oesophagodontus

(small equine strongyles)

75% of equine infections are related with what 2 genera of nematodes?

cecum and colon of equines

the adults of genus Stronglyus are located in the _____ of_____

yes

does genus Strongylus have a buccal capsule?

Strongylus equinus

Strongylus edentatus

Strongylus vulgaris

what are the large equine strongyles?

cecum and colon; equines; liver and pancreas

Strongylus equinus adults infect the _____ of _____, and during moulting, migrates to the _____

cecum and colon; equines; right flank and hepatic ligaments

Strongylus edentatus adults infect the _____ of _____, and during moulting, migrates to the _____

cecum and colon; equines; cranial mesenteric artery

Strongylus vulgaris adults infect the _____ of _____, and during moulting, migrates to the _____

Strongylus vulgaris

which Strongylus species infects the cranial mesenteric artery of horses and is the most pathogenic?

Strongylus edentatus

which species infects the right flank and hepatic ligaments of horses while it is moulting and lives in its large intestine as an adult?

Strongylus equinus

which species infects horses in their liver and pancreas as a larva, and the large intestine as an adult?

L3

what is the infective stage of Strongylus?

L4

what stage of Strongylus performs the intraorganic migrations?

Strongylus equinus

which species causes hemorrhagic nodules in the large intestine of a horse?

Strongylus vulgaris

aorta of a horse. what parasite is this?

Strongylus vulgaris

fibrin tracks in the aorta of a horse due to migrating larva. what species of parasite is this?

Strongylus edentatus

L4 in the peritoneum of the right flank of a horse. what species is this ?

Triodontophorus

which species of parasite infects the colon and caecum of equines, without any migration?

caecum/colon

small equine strongyles/ cyathostomins are located in the ______

their infective stage is L3, where they penetrate the mucosa of the caecum and colon, where they can either perform hypobiosis (and create nodules) or moult to L4 and then return to the intestinal lumen.

describe the life cycle of small equine strongyles/ cyathostomins

small equine strongyles/ cyathostomins

small nodules in the wall of the caecum of a horse. what parasite do we expect this to be?

hookworms

ancylostomid nematodes are commonly known as _____

FAMILY ANCYLOSTOMATIDAE:

Ancylostoma

Uncinaria

Bunostomum

which nematodes are known as "hookworms"?

duodenum; carnivores and humans

A. caninum- carnivores

A. tubaeforme- cats

A. braziliense- carnivores

A. duodenale- humans, swine, wild animals

Ancylostoma are located in the _____ of _____

duodenum of carnivores

Ancylostoma caninum and braziliense are located in the ___ of___

duodenum of cats

Ancylostoma tubaeforme are located in the _______ of________

Ancylostoma duodenale

which species of Ancylostoma infects the duodenum of humans?

L3

what is the infective stage of Ancylostoma?

cutaneous: through hair follicles- blood- heart- lungs- trachea- swallowed- S.I

oral: through oral mucosa- blood- heart- lungs- trachea- swallowed- S.I

prenatal: placenta to fetus

lactogenic: through mammary gland to baby

what are the ways of infection with Ancylostoma?

jejunum and ileum of carnivores

Uncinaria is located in the ______ of ______

oral route

how does a carnivore get infected with Uncinaria?

S.I of ruminants

B. trigonocephalum- jejunum and ileum of small ruminants

B. pleobotomum- duodenum of cattle

Bunostomum infects the _______ of ______

percutaneously

how do ruminants get infected with Bunostomum?

blood-heart-lungs-trachea-swallowed-small intestine

if an Ancylostoma enters a carnivore or human through their skin, what is the route they will take in their body?

hookworms-

Ancylostoma

Bunostomum

Uncinaria

what parasite causes cutaneous larva migrans in humans?

hookworms-

Ancylostoma

Bunostomum

Uncinaria

what parasites can cause this?

Dictyocaulus

what genus is a large lungworm/bronchopulmonary worm?

Dictyocaulus viviparus or Dictyocaulus filaria

what are these large nematodes in the trachea and bronchi of a ruminant?

trachea and bronchi of ruminants

Dictyocaulus infect the ____ of ____

Dictyocaulus viviparus

what nematode infects the trachea and bronchi of cattle?

Dictyocaulus filaria

if we find a large worm in the trachea/bronchi of a small ruminant, we can suspect it is....

embryonated eggs are layed in the lungs, where they are coughed up and swallowed and reach the intestine, where L1 is released with feces. It develops into L3 on the ground, where the fungus Pilobolus contributes to its spreading during sporulation

what is the life cycle of Dictyocaulus?

Dictyocaulus

which nematode uses the help of the fungus Pilobolus for its spread?

Dictyocaulus viviparus

what is this nematode?

Protostrongylus

Muellerius

Neostrongylus

Cystocaulus

which nematodes infect the bronchi, bronchioles, and alveoli of small ruminants?

bronchi, bronchioles, alveoli of small ruminants

the small pulmonary nematodes are located in the ________ of ______

embryonated; larvated

when laid, the eggs of the large pulmonary nematodes are ________, and the eggs of the small pulmonary nematodes are

through feces

(they reach the GI tract by promoting coughing, which expels them out of the resp. tract and are swallowed)

how are small and large pulmonary nematodes excreted from the body?

direct

do the large pulmonary nematodes have a direct or indirect life cycle?

indirect

IH- snails and slugs

do the small pulmonary nematodes have a direct or indirect life cycle?

small pulmonary nematodes:

Cystocaulus

Muellerius

Neostrongylus

Protostrongylus

which nematodes create breeding nodules in the lungs of their DH?

snails and slugs

the IH of small pulmonary nematodes are ....

small pulmonary nematodes:

Cystocaulus

Muellerius

Neostrongylus

Protostrongylus

this represents the life cycle of ______

small pulmonary nematodes:

FAMILY Protostrongylidae

(Cystocaulus, Muellerius, Neostrongylus, Protostrongylus)

protostrongylidosis

sheep lung. which parasite has infected it? what is the name for this disease?

small pulmonary nematodes:

FAMILY Protostrongylidae

(Cystocaulus, Muellerius, Neostrongylus, Protostrongylus)

protostrongylidosis

sheep lung. which parasite has infected it? what is the name for this disease?

Metastronglyus

which nematode infects the bronchi of swine?

pigs (DH) eat an earthworm (IH) with L3 inside. L3 goes from the mesenteric lymph nodes to the lung, where it lays eggs that are coughed up and then swallowed into the GI tract and then excreted with feces.

what is the life cycle of Metastrongylus?

Metastrongylus

this is the life cycle of what nematode?

Angiostrongylus

what nematode infects the pulmonary artery of dogs and foxes?

pulmonary artery; dogs and foxes

Angiostrongylus infects the _______ of ______

IH: snails and slugs

DH: foxes, dogs (pulm. artery)

Angiostrongylus

IH:

DH:

IH: snails and slugs

DH: cats (lungs)

can have rodents and frogs as paratenic host

Aelurostrongylus

IH:

DH:

Aelurostrongylus

which nematode infects the lungs of cats?

Angiostrongylus vasorum

this is the life cycle of what parasite?

small

Nematodirus and Cooperia are both what size? (small or large)

Oesophagostomum

which species produces these nodules in the colon?

Syngamus trachea

what is this species in the trachea of a bird?

Ancylostoma

this egg containing 8 blastomeres is from what species?

Uncinaria

which species has cutting plates instead of teeth?

Dictyocaulus

which species is nicknamed the "giant lung worm"?