Taeniid tapeworms (taenia and echinococcus) Flashcards
(67 cards)
1
Q
Taeniid
A
kingdom- Animalia (unikonts) phylum- Platyhelminthes class- Cestoda order- Cyclophyllidea family- taeniid
2
Q
taeniid tapeworms include
A
- taenia
- echinococcus
3
Q
taeniid host
A
- mammals as intermediate host
- adults in carnivores
4
Q
taeniid lifecycle
A
Hydatid Cyst – Larval metacestode stage w/ huge cysts that develop tens to hundreds of thousands of heads
- Protoscolices – Each little metacestode head inside hydatid cyst
- Cysticercus larva in mammals
5
Q
taeniid transmission
A
- cysticerci from human taeniids
- coenuri from canine taeniids
- hydatid cysts from canine echinococcus
6
Q
taeniid organ effected
A
liver
7
Q
taeniid heads
A
Cysticercus – 1 head per bladder
- Strobilo-cercus – 1 head per bladder but strobilized
- Coenurus – Multiple heads per bladder
- Hydatid – Many heads per bladder (smallest heads, biggest cyst)
8
Q
taenia pisciformis alt name
A
common dog tapeworm
9
Q
taenia pisciformis taxonomy
A
kingdom- Animalia (unikonts) phylum- Platyhelminthes class- Cestoda order- Cyclophyllidea family- taeniid
10
Q
taenia pisciformis host
A
- intermediate rabbit
- final- dog
11
Q
taenia pisciformis lifecycle
A
Segment released -> Releases egg -> Rabbit eats egg -> Larva develops in abd cavity & liver -> metacestode cysticercus forms -> Head pops out of cyst when its eaten by dog
12
Q
taenia pisciformis transmission
A
dogs get it by eating rabbits
13
Q
taenia pisciformis organ
A
liver
14
Q
taenia taeniaeformis alt name
A
cat tapeworm
15
Q
taenia taeniaeformis taxonomy
A
kingdom- Animalia (unikonts) phylum- Platyhelminthes class- Cestoda order- Cyclophyllidea family- taeniid
16
Q
taenia taeniaeformis host
A
- intermediate rat
- final cat
17
Q
taenia taeniaeformis lifecycle
A
-strobilocercus metacestode stage that develops in rat livers
18
Q
taenia taeniaeformis transmission
A
via ingestion of rats
19
Q
taenia serialis
A
- intermediate rabbit
- final dogs, ppl sometimes cats
20
Q
taenia serialis lifecycle
A
coenurus stage in intermediate
21
Q
taenia serialis organ effected
A
- sq cysts in rabbits and ppl
- cns cysts in cats
22
Q
taenia ovis taxonomy
A
kingdom- Animalia (unikonts) phylum- Platyhelminthes class- Cestoda order- Cyclophyllidea family- taeniid
23
Q
taenia ovis host
A
- intermediate sheep
- final dogs
24
Q
taenia ovis lifecycle
A
- cysticercus in intermediate
25
taenia multiceps taxonomy
```
kingdom- Animalia (unikonts)
phylum- Platyhelminthes
class- Cestoda
order- Cyclophyllidea
family- taeniid
```
26
taenia multiceps host
- intermediate sheep
| - final dog, ppl
27
taenia multiceps lifecycle
coenurus in intermediate
28
taenia multiceps organ effective
massive cysts in brain
29
taenia multiceps location
not in North America
30
taenia hydatigena taxonomy
```
kingdom- Animalia (unikonts)
phylum- Platyhelminthes
class- Cestoda
order- Cyclophyllidea
family- taeniid
```
31
taenia hydatigena host
- intermediate ruminants (usually wild cervids like deer)
| - final dogs
32
taenia hydatigena lifecycle
- cysticercus in intermediate w/ long neck like extension of bladder w/ scolex at enx
33
taenia hydatagena organ effected
liver
34
taenia crassiceps taxonomy
```
kingdom- Animalia (unikonts)
phylum- Platyhelminthes
class- Cestoda
order- Cyclophyllidea
family- taeniid
```
35
taenia crassiceps host
- intermediate rodents (woodchuck)
| - foxes final
36
taenia crassiceps lifecycle
asexually multiplying in intermediate
37
taenia crassiceps organ effected
skeletal muscle, abd cavity
38
taenia saginata alt name
beef tapeworm
39
taenia saginata taxonomy
```
kingdom- Animalia (unikonts)
phylum- Platyhelminthes
class- Cestoda
order- Cyclophyllidea
family- taeniid
```
40
taenia saginata host
- intermediate cow
| - final human
41
taenia saginata id
no hooks
42
taenia saginata transmisssion
- humans eat infected cows
| - humans infected w/ cystericercus which becomes adult
43
taenia saginata organ effected
- encysted larva in muscle of cow
44
taenia saginata location
world wide
45
taenia asiatica alt name
pork liver tapeworm
46
taenia asiatica taxonomy
```
kingdom- Animalia (unikonts)
phylum- Platyhelminthes
class- Cestoda
order- Cyclophyllidea
family- taeniid
```
47
taenia asiatica host
- intermediate pigs
| - final humans
48
taenia asiatica id
no hooks
49
taenia asiatica organ effected
- cysticerci in livers of pigs
50
taenia asiatica location
asia
51
taenia solium alt name
pig tapeworm
52
taenia solium taxonomy
```
kingdom- Animalia (unikonts)
phylum- Platyhelminthes
class- Cestoda
order- Cyclophyllidea
family- taeniid
```
53
taenia solium host
- intermediate pig
| - final human
54
taenia solium life cycle
Pig ingests egg from human feces Larva hatch & enter their vessels Cysticerci develop in muscles & infectious to humans by eating raw pork
55
taenia solium id
have hooks
56
taenia solium organ effected
- cysticerci can develop in any organ especially brain
57
taenia solium dx
significant dx often associated w/ seizures
58
echinococcus granulosus taxonomy
```
kingdom- Animalia (unikonts)
phylum- Platyhelminthes
class- Cestoda
order- Cyclophyllidea
family- taeniid
```
59
echinococcus granulosus host
- intermediate caribou, sheep, kangaroo (respectively)
- final wolf, dog, dingo (respectively)
- humans
60
echinococcus granulosus lifecycle
metacestode hydatid in intermediate
61
echinococcus granulosus organ effected
- cysts in liver of intermediates
- brain of intermediates and final
- cysts in skin of humans
62
echinococcus multilocularis taxonomy
```
kingdom- Animalia (unikonts)
phylum- Platyhelminthes
class- Cestoda
order- Cyclophyllidea
family- taeniid
```
63
echinococcus multilocularis host
- intermediate vole, small rodents
| - final arctic fox and dogs
64
echinococcus multilocularis lifecycle
- metacestode hydatid in intermediate
| - alveolar hydatid bc not normal round cyst and instead make liver look like lungs
65
echinococcus multilocularis organ effected
- liver of intermediate host
| - intestines of final host
66
echinococcus multilocularis dx
- very deadly 1 egg untreated can kill you
67
echinococcus multilocularis location
northern us and southern Canada
