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1 | |
All protozoan pathogens have a ______ phase. |
| | A) | cyst |
| | B) | sexual |
| | C) | trophozoite |
| | D) | blood |
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2 | |
Entamoeba histolytica primarily invades the |
| | A) | liver |
| | B) | large intestine |
| | C) | small intestine |
| | D) | lungs |
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3 | |
Giardia is a/an ______ that invades the ______. |
| | A) | flagellate, large intestine |
| | B) | ameba, small intestine |
| | C) | ciliate, large intestine |
| | D) | flagellate, small intestine |
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4 | |
Blood flagellates are transmitted by |
| | A) | mosquito bites |
| | B) | insect vectors |
| | C) | bug feces |
| | D) | sand fleas |
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5 | |
Plasmodium reproduces sexually in the ______ and asexually in the ______. |
| | A) | liver, red blood cells |
| | B) | mosquito, human |
| | C) | human, mosquito |
| | D) | red blood cell, liver |
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6 | |
In the exoerythrocytic phase of infection, Plasmodium invades the |
| | A) | blood cells |
| | B) | heart muscle |
| | C) | salivary glands |
| | D) | liver |
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7 | |
An oocyst is found in ______ and a pseudocyst is found in ______. |
| | A) | humans, cats |
| | B) | cats, humans |
| | C) | feces, tissue |
| | D) | tissue, feces |
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8 | |
A person can acquire toxoplasmosis from |
| | A) | pseudocysts in raw meat |
| | B) | oocysts in air |
| | C) | cleaning out the cat litter box |
| | D) | all of these |
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9 | |
All adult helminths produce |
| | A) | cysts and trophozoites |
| | B) | scolex and proglottids |
| | C) | fertilized eggs and larvae |
| | D) | hooks and cuticles |
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10 | |
The ______ host is where the larva develops, and the _____ host is where the adults produce fertile eggs. |
| | A) | intermediate, definitive |
| | B) | definitive, intermediate |
| | C) | secondary, transport |
| | D) | primary, secondary |
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11 | |
Antihelminthic medications work by |
| | A) | paralyzing the worm |
| | B) | disrupting the worm's metabolism |
| | C) | causing vomiting |
| | D) | both a and b |
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12 | |
A host defense that is most active in worm infestations is |
| | A) | phagocytes |
| | B) | antibodies |
| | C) | killer T cells |
| | D) | eosinophils |
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13 | |
Currently, the most common nematode infestation worldwide is |
| | A) | hookworm |
| | B) | ascariasis |
| | C) | pinworm |
| | D) | trichinosis |
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14 | |
Hookworm diseases are spread by |
| | A) | the feces of humans |
| | B) | mosquito bites |
| | C) | contaminated food |
| | D) | microscopic invertebrates in drinking water |
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15 | |
Trichinosis can only be spread from human to human by |
| | A) | cannibalism |
| | B) | flies |
| | C) | raw pork |
| | D) | contaminated water |
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16 | |
The swelling of limbs typical of elephantiasis is due to |
| | A) | allergic reaction to the filarial worm |
| | B) | granuloma development due to inflammation by parasites |
| | C) | lymphatic circulation being blocked by filarial worm |
| | D) | heart and liver failure due to infection |
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2002 McGraw-Hill Higher Education