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32 Cards in this Set
- Front
- Back
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taenia solium is
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pork tapeworm
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taenia saginata is
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beef tapeworm
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echinococcus granulosus is
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hydatid (cystic) tapeworm
is present near Haifa |
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cestodes lack a ___ system, and depend on ____ for metabolism
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digestive
diffusion |
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head of a tapeworm is called
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scolex
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t. solium has a maximum length of ___m and t. saginata ___m
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7
25 |
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taneiasis is endemic to ___
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whole world
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a taenia segment is called a
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proglottid
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in a proglottid, first ___ gametes mature, then ___. the gametes are released into ___, which is located ___. the embryo then migrates to ___, which is located ___. once the gametes fuse the proglottid is called ___
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male
female genital pore outside the proglottid uterus inside the proglottid gravid |
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t. saginata has ___, whereas t. soleum has
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no rostellum
rostellum |
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taenia life cycle (6)
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1. in human intestine, taenia releases eggs
2. pig/cow eats eggs in human feces (intermediate host) 3. in pig/cow, egg releases larvae into blood -> muscle 4. larvae arrest development and form cysticercus 5. humans eat pig/cow 6. in human intestine, cyst develops into proglottids |
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if people eat larval form of ___ they can get ___
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t. solium
cysticercosis |
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___ is a teniacide which uncouples oxidative phosphorylation
___ causes explusion of the worm by inducing contraction |
niclosamide
praziquantel |
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cysticerci die below ___C and above ___C
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-10
50 |
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echinococci have ___ proglottids
1 is ___, 1 is ___ and the other is ___. |
3
immature mature gravid |
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e. granulosus life cycle (5)
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1. in dog (DH) intestine, proglottid releases eggs
2. human/sheep/goat eat egg in dog feces 3. in IH, eggs develop into hydatid cysts 4. dogs eat cyst in meat 5. in dog intestine, cyst hatches and proglottids develop |
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e. granulosus cysts cause ___ (2) in abdomen
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distension
ascites |
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e. granulosus cysts cause ___ in liver
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obstructive jaundice
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e. granulosus cysts cause ___ (3) in lung
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pulmonary abcess
cough chest pain |
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e. granulosus cysts cause ___ in CNS
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jacksonian epilepsy
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e. granulosus cysts form ___ the lumen of intestine
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outside
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cyst formation can take ___ years and can reach size of ___
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10--20
soccer ball |
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tests for e. granulosus include
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serology
skin (casoni) test |
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___ can be used to kill e. granulosus larvae
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hypertonic saline
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drugs for e. granulosus
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praziquantel
benzimidazole |
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benzimidazole inhibits
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Glc transport
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DH for hymenolepis nana (2)
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human
rodents |
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drugs for h. nana
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niclosamide
praziquantel |
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diphyllobothrium latum egg features (2)
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operculum
knob |
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d. ___ is endemic to northern europe, d ___ to US, d. ___ to norhtern canada
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latum
ursi dendriticum |
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___ deficiency in diphyllobothriasis can cause ___
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B12
anemia |
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diphyllobothriasis drugs (2)
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niclosamide
praziquantel |
