Veterinary Parasitology Exam1 UIUC
Terms
undefined, object
copy deck
-
Eimeria species have __ sporocysts in the oocyst; each sporocyst contains___
sporozoites. -
Eimeria species have _4_ sporocysts in the oocyst; each sporocyst contains _2_
sporozoites. -
Isospora species have ___ sporocysts in the oocyst; each sporocyst contains ___
sporozoites. -
Isospora species have _2_ sporocysts in the oocyst; each sporocyst contains _4_
sporozoites. -
Eimeria spp. are found primarily in
A) Carnivores
B) Herbivores
C) Birds
(select all that apply) - B and C
-
Isospora spp. are found primarily in
A) Carnivores
B) Herbivores
C) Birds
(select all that apply) - A
- T/F - Toxoplasma gondii is very host specific
- F - T. gondii has less host specificity than most any other organism
- Members of the family Felidae have this stage of T. gondii which is not present in any other animal.
- THe sexual stage is found in cats
- This is the most common method by which humans are infected with T. gondii
- ingestion of undercooked meat containing zoites
-
Put these life cycle stages of T. gondii in order
Pseudocyst
Bradyzoite
Tachyzoite
Cyst -
Tachyzoite
Pseudocyst
Bradyzoite
Cyst -
Inoculation of secretions, excretions, blood, or other body fluids, or tissue
homogenates into laboratory animals is - - Xenodiagnosis
- Oocysts of T. gondii must do this before they are infective
- Sporulate
-
The definitive host for sarcocystis is usually
A) Prey
B) Herbivore
C) Predator
D) A and B - C - the intermediate host is usually the prey animal
- Sarcocystis is usually this size in the intermediate host
- stenoxenous (narrow)
- T/F No immunity develops due to previous Sarcocystis infection
- True
-
Reproduction of the meront in the intermediate (prey) host of Sarcocystis ie by this method
(Sexual/Asexual) - asexual
- List 4 ways in which Cryptosporidium spp. have been transmitted
-
1. Feces from an infected animal
2. Mucosal scrapings from infected organs
3. Tissue homogenates of infected organs
4. Mechanically, on contaminated equipment, or on hands, boots, shoes, or clothes of caretakers - Thin walled Cryptosporidium cysts may cause this
- Auto reinfection
- This type of diarrhea is associated with Cryptosporidia in 1 - 2 week old calves
- yellow and watery
- The ________________ flotation is used to detect cryptosporidium
- The __Sheathers_ flotation is used to detect cryptosporidium
- ____________________ are malaria-like parasites found in reptiles, birds and amphibians
- Haemoproteus spp.
-
Gamonts of haemoproteus occur in this type of cell in the definitive host
A) endothelial cells of blood vessels
B) mucosal cells
C) erythrocytes - C) erythrocytes
- Most species of amoeba do not form cysts - T/F
- False