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Microbiology > Parasites > Flashcards

Parasites Flashcards

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Biology 101 flashcards
1
Q

Filamentous, present in mouth, and colonies have a molar-tooth appearance on agar.

A

Actinomyces

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2
Q

Actinomyces may occur as acute ___ infection

A

pyogenic

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3
Q

Actinomyces may occur more commonly as a ___ infection that is both ___ and ___.

A

chronic infection that is both suppurative and granulomatous

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4
Q

Actinomyces is characterized by multiple __ and interconnecting ___ ___.

A

abscesses and sinus tracts

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5
Q

Bacteria that has macroscopic masses known as sulfur granules due to their yellow/orange appearance = ?

A

Actinomyces

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6
Q

Chronic suppuration results in ___ formation and a fibrotic “walling off” of the lesion.

A

granuloma

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7
Q

Strictly aerobic, gram (+) rod that is in soil

A

Nocardia

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8
Q

Between Actinomyces and Nocardia, which is seen in the oral cavity?

A

Actinomyces

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9
Q

Between Actinomyces and Nocardia, which is seen in the environment?

A

Nocardia

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10
Q

Between Actinomyces and Nocardia, which is strictly anaerobic?

A

Actinomyces

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11
Q

Between Actinomyces and Nocardia, which is strictly aerobic?

A

Nocardia

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12
Q

What is the treatment for Actinomycosis?

A

Penicillin G

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13
Q

What is the treatment for Nocardia?

A

Sulfonamides

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14
Q

Gram (+) branching filaments, sulfur granules in pus are characteristics of?

A

Actinomyces

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15
Q

Gram (+) filaments, often acid-fast (like TB) are characteristics of?

A

Nocardia

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16
Q

What are the two kinds of vectors?

A

Mechanical and Biological

17
Q

Major malaria parasite?

A

Sporozoa (doesn’t move; non-motile)

18
Q

Worldwide incidence of malaria?

A

1 million children each year, each child dying every 30 seconds

19
Q

What is the major plasmodium species in malaria?

A

P. falciparum

20
Q

Pathology of malaria?

A

death due to RBC destruction (anemia), clots in brain and other organs (spleen and liver)
(most critical symptom - death within 3-4 days if not treated)

Microbiology (16 decks)

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