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21 Cards in this Set

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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