Flashcards in Test 1 Possible Questions Deck (101):
Most important factor in distribution of parasitic infection in industrialized nations is?
(also, rapid traveling and High number of immunodeficient people)
Plasmodium reproduces via sexual or asexual?
Both asexual in humans and sexual in mosquito
The entamoeba histolytica infection can be prevented and ocontrolled by the _____?
Water Treatment & Food sanitation
Nagelaria fowleri that normally infect _______ can accidently infect human and cause primary acute meningoencephalitis.
Ducks and Geese
Naeglaria fowleri infection in human begins with entrance of parasite to _____ by _____.
Nasal passage, Diving and swimming
Trichomonas vaginalis is transmitted by ?
A flagellated protozoa that inhabit the atria of human and causes sexually transmitted disease.
An amoeba that is normally found among ducks, geese, and swans. It is an accidental parasite of humans and may cause primary acute meningocephalitis.
The 3rd most common round worm in the USA is:
Whipworm (trichuris trichuria)
The 2nd most common round worm in the USA is:
The MOST common round worm in the USA is:
An intestinal flagellate with no observable flagella that uses pseudopodia for movement and causes diarrhea in humans:
Dientamoeba fragilis, an intestinal parasite that uses _____ for movement and causes diarrhea in humans.
Giardia is not highly invasive; the target tissue is the:
This vector is able to transmit Kala- azar disease to humans.
Diagnosis of malaria is achieved through direct identification of plasmodia in a?
The number of worms in the intestinal tract is the:
Common name for anisakidae marina is:
The parasitic organism most commonly associated with waterborne outbreaks of diarrhea in GA?
A blood parasite that invades all red blood cells and is known as the deadliest plasmodium.
The definitive (final) host for toxoplasma gondii is?
Increase in worm burden in the intestinal tract will happen by?
A blood parasite that invades reticulocytes is characterized by simple ring forms may cause a rue relapse is:
Since infection with toxoplasmosis during pregnancy may cause embryonic or fetal damage, pregnant woman should avoid contact with?
The final host for plasmodium malariae is?
Female anopheles Mosquito
The most common intestinal flagellated protozoa isolated from clinical specimens in the USA is?
Source of transmission of Giardia Lamblia?
Contaminated food & contaminated water
When the parasite live on the host and its life cycle will not be completed there:
Host that parasite passes its adult and sexual reproduction:
Transport parasite from infected host to non-infected host:
An animal that harbors a species of parasite and can serve as a source of parasitic infections:
Hosts that parasite passes its larvae and asexual reproduction:
Diagnosis of filariasis is difficult because symptoms are broad- spectrum, but with the identification of microfiliaria and examining _____ diagnosis is possible.
Presence or absence of sheath Array of stained nuclei on the tail
Trichinella spiralis larvae can be encysted in striated muscle of mammal, and can be transmitted to human by?
The eggs of this intestinal roundworm do not require incubation in warm humid soil for its infectivity:
Anisakidae marina worm infections is very common in?
Plasmodium vivax causes mild hemolytic anemia because of invasion of?
Immature red blood cells
Which one of the following is the most likely way to get infected by Giardia lamblia?
Ingestion of cyst
A unique feature of sporozoan is that they?
Have a complex method of reproduction including asexual, and sexual.
Which of the following genera causes vaginitis
Which of the following statements describe protozoan?
They are Eukarotes
They can be grouped on the base of motility
Important factors involved in the severity of parasitic infection:
(all of the above)
Major locomotion of sarcodinia?
Transports parasite from infective to non-infected.
Host organism in which parasite passes to adult and/or sexual reproduction phase.
Definitive of final host
Invasion and multiplication of pathogenic parasite into the body.
Host that parasite passes its larvae and asexually reproduces.
The severity of parasitic infection is related to?
State of resistance (most important)
Pear shaped trophozoite of of sporozoa characterized by many ring forms in RBC.
Babesia Mincroti (thick, 2-4 rings)
Prolonged heavy infection of Giardia Lamblia results in?
Fat in stools
Symptoms of malaria that repeats episodically:
Most round worms are found in?
Human intestines (but answer is none of the above)
Why is host immune response to parasites sometimes ineffective?
Having capsule or slime layer Complex life cycle of parasite Conversion of antigen on the parasite surface
All of the above
Most sporozoa are pathogens.
Person may acquire toxoplasmosis ONLY from cysts.
Blood flagella are transmitted by vectors.!(example TseTse fly)
Upon infection with Naeglaria fowleri, clinical symptoms are very similar to
Most of the adult helminth worms are large, can be seen without microscope.
Amoeba reproduce asexually ONLY.
An oocyst is the result of asexual reproduction in plasmodium
A person may acquire toxoplasmosis from eating improperly cooked meat.
Threadworm is the only worm to reproduce inside the human.
And the only female adult form inside the human.
A male anopheles mosquito is a final host for plasmodium vivax.
Prolonged heavy infection of Giardia lambiia may result in malabsorption which result that stool contains large amounts of unabsorbed fat of intestinal mucosa.
. Round worms are the MOST prevalent helmenth worm infection around the world.
Larval form of parasite can be destroyed by antibodies, and the presence of these antibodies provide resistance to reinfection by parasite
Trichinosis Undercooked pork Undercooked bear Focal lesion
Beef tapeworm infection Cysticercus
E. histolytica can be prevented and controlled by
A patient complains of diarrhea and crump after returning from a rafting trip in Canada. he said he was drinking water from streams. Which flagellate protozoa is he most likely infected by?
This vector is able to transmit River blindness disease to humans, and their breeding sites are overhanging vegetation sites
Black fly (simulium fly)
An ameba that is normally found among ______ and its is an accidental parasite of humans and may cause primary acute meningocephalitis:
Duck and Geese
An intestinal protozoa with no observable flagella which use pseudopodia for its movement and causes diarrhea in humans
Which one of the following is/are NOT IMPORTANT factors in distribution of parasitic infection in industrial society
high number of healthy people
Which of these are IMPORTANT in distribution of parasitic infection in industrial society
high number of immunodeficient people
Why is th host immune response to parasitic infection sometimes ineffective
large size of parasite
complex life cycle of parasite
Important factors involved in severity of parasitic infection are
Virulence of parasite
State of immunity of host
Size of inoculation
Major locomotor in Sporozoan is
Movement is not a prominent characteristic in most cells, but occasionally flagella or pseudopoda are present.
None of the Above
An intestinal ciliate which can form cyst and causes diarrhea in humans
Balantidium Coli (An intestinal ciliate):
A hemoflagellate parasite that can be transmitted to human by Assassin bug bite
'Assassin bug' because when it infects a person with trypanosoma
crozi that person contracts Chaga' s disease and usually dies
a hemoflagellate parasite that can live and multiply in the blood and tissues of humans
Reduvvid bug is able to transmit ______ diseases to humans by biting the mucus membrane of peripheral area of the lips, filling the area with blood, and then filling he bites with feces containing trypanosome
Kissing Bug, Assassin Bug
Intestinal flagellates are all transmitted by vectors
T/F A sporosite is the result of fertilization in sporozoans
A person may acquire toxoplasmosis form cat scratch
A round shaped trophozoite of a sporozoan characterized by the presence of single ring forms in red blood cells and crescent shaped gametocyte is:
A blood parasite that invades all age's blood cells and is characterized by single ring form
Where do undeveloped eggs of whip worm complete their development?
In the human intestine
Which on of the following worm form fine filariform larvae
How does the hook worm inject the human body
cut on bare foot
hair follicle??? also???
Number of worms in the intestinal tract is the
Common Name for ancylostoma braziliense is
Dog and Cat Hookworm
The parasitic organism most commonly associated with waterborne outbreaks of diarrhea in Georgia
largest adult intestinal round worm
Ascaris lumbricoides (Ascariasis)
Trichinella spiralis is an intestinal worm that humans are accidental host, transmission of worm occurs by:
eating undercooked pork or bear
Since infection with toxoplasmosis during pregnancy may cause embryonic or fetal damage, pregnant women should avoid contact with
The intermediate host for Plasmodium malaria is