Midterm III (helminthology) (Cestodes) Flashcards
1
Q
A
- Moniezia benedeni*
- -* each proglottis has two sets of genitals which open on both sides
2
Q
A
- Anoplocephala perfoliata*
- each proglottis has one set of genitalis which all open on the same side
- testicles are scattered as small pale spots on the opposite side
3
Q
A
- Moniezia benedeni* egg
- Quadrilateral egg shape
- oncosphaera is eccentric
4
Q
A
- Moniezia expansa* egg
- triangular egg shape
- oncospharea is usually central
5
Q
A
- Anoplocephala perfoliata* egg
- semicircular shape
contains 6 hooked oncosphera inside
6
Q
A
- Dipylidium caninum* (cucumber/ flea tapeworm) mature segment
- genital openings on both sides
- 2 ovaries in the centre
- testicles fill the central part of the proglottis
7
Q
A
- Dipylidium spp.* cocoon
- oncospheres fill the centre
8
Q
A
- Diphyllobothrium latum* (broad/ fish tapeworm) scolex
- longitudinal, oval slit (Bothridium)
9
Q
A
- Diphyllobothrium latum* (broad/ fish tapeworm) Proglottis
- 1 set of gentialia
genital openings in the midline
10
Q
A
- Diphyllobothrium spp.* eggs
- resemble the reatures of trematode eggs
- no oncosphere
11
Q
A
- Taenia spp. scolex*
- strong hooks on the rostellum*
- impressions of 2 suckers*
12
Q
A
- taenia spp.*: proglottis
- genital organs open on each side in irregular alternating positions
13
Q
A
- taenia spp.* mature segment
- mass of scattered testicles
- two longitudinal excretory canals
- 2 genital ducts parallel to the genital opening
14
Q
A
- taenia spp.* Gravid segment
- branches of uterus are filled with white eggs
15
Q
A
- Taenia spp.* egg
- thick refrective eggshell
- six hooked oncosphere (not all hooks are visible)
- colour: white-brown
16
Q
A
Taenia spp. cystericus larva
liver tissue
- you can tell it snt echinococcus because there is no surrounding CT
17
Q
A
Taenia spp. cysticerci
cut surface of skeletal muscle
18
Q
A
taenia multiceps
coenurus larvae
19
Q
A
- echinococcus granulosus*
- scolex with rostellum and suckers
- Short neck
- immature segment and mature segment
- Gravid segment
- centrally aggregated eggs
20
Q
A
- echinococcus hydatidosus*
- spherical protoscolicies attached to the wall of inner broad capsules
21
Q
A
protoscolex of echinococcus granulosus
- the number of hooks is equal to the number of hooks on the adult’s scolex
22
Q
A
- Echinococcus multiocularis*: cavernous structure
- sterile larvae not containing any protosolices
23
Q
what is the difference between cysticercus psisiformis & echinococcus interlocularis in necropsy?
A
cysticercus pisiformis: lesions appear on the liver
Echinococcus interlocularis: lesions appear inside the liver
24
Q
A
dipyldium caninum
25
*Dipylidium caninum*: dried segments
26
*anoplocephala perfoliata*
27
*moniezia expansa*
28
*mesocestoides spp.*
29
*anoplocephala perfoliata*: worm
30
moniezia expansa
31
*dipylidium caninum*
32
*anocephala perfoliata*
33
*cystericus bovis*
34
*cystericus pisiformis*
note the lesions appear "**on**" the liver
35
(*taenia*) *cysticercus pisiformis*: rostellum
36
*mesocestoides lineatus*
37
*cysticercus tenuicollis*: on a liver
38
*taenia pisiformis*: gravid section
39
*cysticercosis* in the rabbit's liver
40
*taenia saginata:* egg
41
*cysticercus*: heart muscle
42
*taenia pisiformis*: gravid proglottis
43
* taenia pisiformis/ cysticercus pisiformis?*
* -* liver and mesentery of rabbts and hares
* taenia hydatigena/ cysticercus tenuicollis?*
* - liver and mesentery of ruminants and swines*
44
*mesocestoides lineatus*: segment
45
mature *cysticerci* on the peritoneal surface
46
* cysticercus cervi*
- skeletal muscles of deer
47
*cysticercus pisiformis*: rabbit liver
48
*echinocossus multilocularis* larvae:
## Footnote
*echinococcus alveolaris*
49
taenia type eggs
50
*echinococcus multilocularis : hyatid cyst with protoscolices inside*
51
*echinococcus granulosus*: protoscolex
52
*echinocossus* & *dicrocoelium*
liver sample
53
* echinococcus interlocularis*
- the cysts are **in** the liver
54
(taenia) *cysticercus crassiceps*
55
*echinococcus hyatidosus*: larvae
56
*cysticercus longicollis*: larvae
57
*echinococcus granulosus*: cyst
58
*cysticercus tenuicollis*: larvae
59
*echinococcus:* hyadtid cysts in the liver
60
*Echinococcus* cysts
61
*taenia serialis*
62
*echinococcus*: hyatid cysts (heart)
63
*taenia spp. cysticercus*
64
*echinococcus*: hyatid cyst (liver)
65
*taenia multiceps*
66
*taenia saginata*: cysticercus bovis
67
*taenia hydatigena*
68
*taenia multiceps*: coenurus larvae
69
*taenia hydatigena*: cysticerci
70
*taenia saginata*: worm and larvae
71
*taenia pisiformis*
72
*taenia pisiformis*
73
*taenia pisiformis*: eggs
74
*cysticercus tenuicollis*
| (taenia hydatigena larval form)
75
*strobilocercus fasciolaris*
| (taenia taeniaeformis larval form)
76
*cysticercus bovis*
77
cysticercus larvae in the brain
78
*cysticercus longicollis*
| (taenia crassiceps larval form)
79
*Coenurus serialis*
(taenia serialis larval form)
found in CT & muscles
80
*echinococcus granulosus*
81
*cysticercus pisiformis*
| (taenia pisiformis larvae)
82
*cysticercus cellulosae*
| (taenia solium larval form)
83
*taenia pisiformis*
84
*Taenia serialis*
85
*cysticercus tenuicollis*
| (taenia hydatigena larval form)
