Non-bursate nematodes Flashcards
(83 cards)
1
Q
non-bursate nematodes taxonomy
A
kingdom- Animalia
phylum-Nematoda- non-bursate
2
Q
oxyurida alt name
A
pinworms
3
Q
oxyurida taxonomy
A
kingdom- Animalia
phylum-Nematoda- non-bursate
order- oxyurida
4
Q
oxyurida life cycle
A
- direct life cycle
5
Q
oxyurida id
A
- short esophagus w/ bulb at base
- pointed tail
6
Q
oxyurida organ effected
A
cecum and colon
7
Q
oxyuris equi taxonomy
A
kingdom- Animalia
phylum-Nematoda- non-bursate
order- oxyurida
8
Q
oxyuris equi host
A
equids
9
Q
oxyuris equi lifecycle
A
Gravid females travel to rectum & out through anus -> Deposit eggs on perianal skin -> Larvae develop in egg -> Eggs ingested -> Larvae hatch in small intestine
10
Q
oxyuris equi organ
A
cecum and colon
11
Q
oxyuris equi dx
A
- puritis ani ie itchy butt and horse rubs everywhere spreading eggs
12
Q
oxyuris equi geography
A
world wide
13
Q
enterobius vermicularis alt name
A
human pinworm
14
Q
enterobius vermicularis taxonomy
A
kingdom- Animalia
phylum-Nematoda- non-bursate
order- oxyurida
15
Q
enterobius vermicularis life cycle
A
- direct
- Gravid females travel to rectum & out through anus -> Deposit eggs on perianal skin -> Larvae develop in egg -> Eggs ingested -> Larvae hatch in small intestine
16
Q
enterobius vermicularis id
A
- eggs flat on one side
- eggs can also hatch at deposition site then crawl back through anus into rectum until reach colon
17
Q
enterobius vermicularis organ effected
A
large intestine and rectum
18
Q
enterobius vermicularis dx
A
Little harm
- Puritis ani - Heavy infection cause intestinal irritation
- Female worms can migrate into vagina causing vaginitis
19
Q
enterobius vermicularis location
A
world wide in cooler climates
20
Q
enterobius vermicularis get how
A
ONLY IN PPL GET IT FROM EACH OTHER
21
Q
enterobius vermicularis tx
A
treat entire family with pyrantel
22
Q
ascaridida taxonomy
A
kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida
23
Q
ascaridida host
A
- fish, amphibian, reptiles, birds, mammals
- intermediate or paratenic hosts
24
Q
ascaridida id
A
large and cream colored
25
ascaridida organ/ cell effected
small intestine and stomach
26
ascaris suum taxonomy
kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida
27
ascaris suum host
swine
| - zoonotic (larvae only)
28
ascaris suum id
males a foot long and females longer
29
ascaris suum life cycle
- Direct life cycle egg w/ L3 ingested -> Hatches -> Migrate to liver & lungs -> C up & swallowed -> Develop to adults in small intestine
30
ascaris suum dx
- interfere with nutrition
- liver migrations cause mechanical damage, hypersensitive, milk spots
- lung migrations cause mechanical damage, inflam
31
ascaris suum geo
cosmopolitan
32
parascaris equorum taxonomy
kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida
33
parascaris equorum host
- young horses < 1 yr
34
parascaris equorum id
LONG longer than ascaris suum which are a foot long
35
parascaris equorum lifecycle
- direct
- egg w/ L3 ingested -> Hatches -> Migrate to liver & lungs -> C up & swallowed -> Develop to adults in small intestine
36
parascaris equorum organ effected
small intestine
37
parascaris equorum dx
- enteritis, gut perforation, intestinal blockage, liver spots, lung disease
38
parascaris equorum loation
cosmopolitan
39
parascaris equorum tx
resistant to ivermectin
40
toxocara canis taxonomy
kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida
41
toxocara canis host
- dogs
- also use paratenic
- ZOONOTIC
42
toxocara canis lifecycle
Eggs in feces become infective in soil -> Ingested -> Larva migrate through liver & lungs to small intestine
- If trans- placental larva arrest in bitch then migrate into puppy during preg -> Found in liver & lungs at birth
43
toxocara canis transmission
- transplacental
| - can be infected w/ egg or larvae in paratenic host
44
toxocara canis organ effected
small intestine
45
toxocara canis dx
- rupture of intestinal mucosa, impaction, distended abdomen
| - pups born die with these lesions several weeks old
46
toxocara canis ppl dx/ larvae where
- ZOONOTIC
- visceral larval migrant in ppl (25% of Americans)
- larvae in liver, skeletal muscle, brain
47
toxocara canis ppl infected how
ppl infected by ingesting infective eggs passed in dog feces
48
toxocara cati taxonomy
kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida
49
toxocara cati host
- cats
| - zoonotic
50
toxocara cati transmissio
- ingesting eggs or paratenic hosts
| - no transmammary transmission
51
toxocara cati organ effected
small intestine
52
toxocara cati dx
not as severe as toxocara canis (still see intestinal/ gi dx?)
53
toxocara cati dx ppl
- visceral larval migrant in ppl
| - larvae in liver, skeletal muscle, brain
54
toxocara vitulorum taxonomy
kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida
55
toxocara vitulorum host
- cattle
| - water baffalo
56
toxocara vitulorum transmission
transmammary
57
toxocara vitulorum organ effected
small intestine
58
toxocara vitulorum dx
- calves die several weeks old like w/ toxocaris canis
59
toxocara vitulorum location
- tropics
| - occasionally us
60
toxacaris leonina taxonomy
kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida
61
toxacaris leonina host
- dog, cat, fox
62
toxacaris leonina lifecycle
- direct
| - Eggs in feces -> Larvate very quickly -> Swallowed by final host -> Develop in bowel lumen
63
toxacaris leonina organ effected
small intestine
64
toxacaris leonina dx
no significant pathology
65
toxacaris leonina location
- cooler climate
66
baylisascaris procyonosis alt name
raccoon roundworm
67
baylisascaris procynosis taxnomy
kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida
68
baylisascaris procynosis transmission
- Eggs shed by raccoon then eaten by other animals & larvae migrate through CNS causing death
- Dogs probably infected by eating rodents
69
baylisascaris procynosis dx
- severe and deadly dx in children if they ingest eggs
| - ocular lesions in adult
70
baylisascaris procynosis host
- raccoons, adult dogs
| - zoonotic
71
baylisascaris procyonosis humans dx
- ZOONOTIC
- visceral larval migrant in ppl (25% Americans)
- larvae in liver, skeletal muscle, brain
72
anisakis and pseudoterranova taxonomy
kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida
73
anisakis and pseudoterranova host
- sea mammals- mainly toothed whales and pinnipeds
- crustacean 1st intermediate
- various fish paratenic
- humans
74
anisakis and pseudoterranova lifecycle
- embed heads into mucosa and attach to empty stomach wall
| - when stomach fills w/ food they detach and migrate into food to feed
75
anisakis and pseudoterranova organ effected
stomach or small intestine
76
anisakis and pseudoterranova in humans
- visceral larval migrant in ppl (25% of Americans)
- larvae in liver, skeletal muscle, brain
- get it form eating sushi
77
pseudoterranova taxonomy
kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida
78
pseudoterranova final host + larvae found where
- final: seal
| - larvae: cod and haddock
79
pseudoterranova lifecycle
- embed heads into mucosa and attach to empty stomach wall
- when stomach fills w/ food they detach and migrate into food to feed
- worms migrate up esophagus and cough out
80
pseudoterranova larvae humans
- larvae migrate out of humans after ingestion
81
anisakis taxonomy
kingdom- Animalia
phylum-Nematoda- non-bursate
order- ascaridida
82
anisakis host
- toothed whales
| - larvae in salmonids, tuna, other fish
83
anisakis dx
- cause dx in ppl when larvae enter stomach wall
