06 - Coccidia Flashcards Preview

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Flashcards in 06 - Coccidia Deck (27):
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(Apicomplexa)

1. All are what in terms of host interaction?

2. locomotory?

3. apical complex observed in what?

1. parasitic

2. no locomotory organelles (except for flagellated microgametes - similar in function as sperm)

3. zoites

3

 (Apicomplexans)

1-5. what are the five components of the apical complex?

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4

(Stages)

(-zoite)

1. shaped like a banana

2. occurs in many forms (merozoite, sporozoite, tachyzoite, bradyzoite)

3. typically are what kind of form?

(-ont)

1. many forms (meront, schizont)

2. usually what kind of strucutures?

(gametocytes)

structures with productes (-gametes) of gamete formation (gemtogony)

3. motile, active form

2. non-motile

5

(Family: Eimeriidae - coccidia)

1. how many hosts?

2. what are the major genera?

3. life cycle has how many stages? where do they occur?

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(Family: Eimeriidae - coccidia)

1. within host - what types of reproduction?

2-3. What are the two types (plus describe them)

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(Family: Eimeriidae - coccidia)

(Sporogony - Oocyst)

1. product of what?

2. what can this form do?

3. does what outside host to become infective?

4. Eimeria has how many sporocysts/sporozoites?

5. Isospora has how many sporocysts/sporozoites?

4. 4 sporocysts each with 2 sporozoites

5. 2 sporocysts each with 4 sporozoites

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9

(Family: Eimeriidae - coccidia)

(Eimeria)

1. how host specific?

2. usually present in what?

(isospora)

1. how host specific?

2. usually present in what?

1. very

2. herbivores

1. less

2. carnivores

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12

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13

(Coccidia)

What is the difference between coccidiasis and coccidosis?

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14

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+ Dispersion (humans, wind, birds, etc)

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16

Eimeria Tenella is most pathogenic (and the one we are going to spend time on)

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17

(Life cycle of Eimeria Tenella)

1. oocyst passed in what?

2. with adequate moisture and temperature will get what?

3. how long can oocyst remain infective?

4. infection is by what?

1. feces

2. oocyst sporogony in 24 - 48 hours

3. 2-3 months

4. ingestion of oocyst

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23

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24

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25

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26

most of life cycle takes place where?

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lower 1/3 of the si, ceca and rectum

27

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