MICP Final 13

A detailed diagram of various parasites and their hosts in a biological context, focusing on interactions between them, with vibrant colors and clear labels.

Understanding Parasitology: A Quiz

Test your knowledge about parasitology with our comprehensive quiz! This interactive quiz covers various aspects of parasites, hosts, and their relationships, allowing you to learn and assess your understanding in a fun way.

Key features:

  • 146 thought-provoking questions
  • Multiple choice format
  • Learn about different forms of parasitism
146 Questions36 MinutesCreated by LearningParasite42
An organism that depends on the host for survival. An organism that obtains nourishment and shelter from another organism.
PARASITOLOGY
PARASITE
HOST
VECTOR
The study of large parasites
PARASITOLOGY
PARASITE
HOST
VECTOR
A living organism that carries a disease-causing organism to new hosts
PARASITOLOGY
PARASITE
HOST
VECTOR
An organism that harbors a parasitic, mutualistic, or commensalist guest, the guest typically being provided with nourishment and shelter.
PARASITOLOGY
PARASITE
HOST
VECTOR
A form of relationship between two, unlike organisms.
Symbiosis
MUTUALISM
PARASITISM
COMMENSALISM
One species (symbiont/parasite) benefits to the detriment of the other and harm it.
Symbiosis
MUTUALISM
PARASITISM
COMMENSALISM
A symbiotic relationship between two organisms in which one organism benefits while the other is unaffected
Symbiosis
MUTUALISM
PARASITISM
COMMENSALISM
Is a biological interaction between two species wherein both species benefit from each other.
Symbiosis
MUTUALISM
PARASITISM
COMMENSALISM
Infestation - invasion of the body
ECTOPARASITES
ENDOPARASITES
Infection - invasion of the body
ECTOPARASITES
ENDOPARASITES
Those that live inside of the host’s body (e.g., helminths, worms).
ECTOPARASITES
ENDOPARASITES
Those that live outside of the host’s body (e.g., fleas, lice).
ECTOPARASITES
ENDOPARASITES
Must exist as a parasite inside a host
FACULTATIVE PARASITE
OBLIGATE PARASITE
PERMANENT PARASITES
INTERMITTENT PARASITES
Can live independently
FACULTATIVE PARASITE
OBLIGATE PARASITE
PERMANENT PARASITES
INTERMITTENT PARASITES
Simply visit the host during feeding time.
FACULTATIVE PARASITE
OBLIGATE PARASITE
PERMANENT PARASITES
INTERMITTENT PARASITES
Remain in a host from early life to maturity.
FACULTATIVE PARASITE
OBLIGATE PARASITE
PERMANENT PARASITES
INTERMITTENT PARASITES
It is a FACULTATIVE PARASITE
Naegleria fowleri
Leishmanis, Hookworms
Plasmodium
Echinococcus granulosus
It is a OBLIGATE PARASITE
Naegleria fowleri
Leishmanis, Hookworms
Plasmodium
Echinococcus granulosus
It is a INTERMITTENT PARASITES
Naegleria fowleri
Leishmanis, Hookworms
Plasmodium
Echinococcus granulosus
It is a PERMANENT PARASITES
Naegleria fowleri
Leishmanis, Hookworms
Plasmodium
Echinococcus granulosus
Becomes fixed in an unusual organ different from that which is ordinarily parasitized.
INCIDENTAL (ACCIDENTAL) PARASITES
TRANSITORY PARASITES
ERRATIC (ABERRANT) PARASITES
Occur on an unusual host like Dog tapeworms in human
INCIDENTAL (ACCIDENTAL) PARASITES
TRANSITORY PARASITES
ERRATIC (ABERRANT) PARASITES
Larva develops in a host while the adult is free-living.
INCIDENTAL (ACCIDENTAL) PARASITES
TRANSITORY PARASITES
ERRATIC (ABERRANT) PARASITES
Hosts that harbor the adult stage of the parasite.
DEFINITIVE (PRIMARY) HOST
INTERMEDIATE (SECONDARY) HOST
ABERRANT HOST
Carrier host, it harbors the parasite, serves as a source of infection of other susceptible hosts
DEFINITIVE (PRIMARY) HOST
INTERMEDIATE (SECONDARY) HOST
ABERRANT HOST
Is a host that harbors the larval stage of the parasite.
DEFINITIVE (PRIMARY) HOST
INTERMEDIATE (SECONDARY) HOST
ABERRANT HOST
Vertebrate hosts that harbor the parasite and may act as an additional source of infection in man.
RESERVOIR HOST/CARRIER
PARATENIC HOST
Host larval stage, no development takes place
RESERVOIR HOST/CARRIER
PARATENIC HOST
— Intestinal protozoa (cyst) ◝ Round Tapewormd: Ascaris lumbricides ◝ Ticchuris trichiura ◝ Entrobius vernicularis ◝ Dward tapeworm: Hymenolepis nana
CONTAMINATED WATER
CONTAMINATED FOOD
Contains mature larval stage
CONTAMINATED WATER
CONTAMINATED FOOD
Diphyllobothrium latum - intestinal lung flukes
FROM EATING FOOD CONTAINING MATURE LARVAL STAGE
ENTER BODY FROM SOIL VIA SKIN
SEXUAL INTERCOURSE
Hookworms and Strongyloides
FROM EATING FOOD CONTAINING MATURE LARVAL STAGE
ENTER BODY FROM SOIL VIA SKIN
SEXUAL INTERCOURSE
Trichomonas vaginalis
FROM EATING FOOD CONTAINING MATURE LARVAL STAGE
ENTER BODY FROM SOIL VIA SKIN
SEXUAL INTERCOURSE
A path for the microorganism to escape form the host.
PATHOGENESIS
PORTAL OF EXIT
Manner of development of a disease.
PATHOGENESIS
PORTAL OF EXIT
Parasites that live inside the host.
Obligatory parasites
Facultative parasites
Endoparasites
Ectoparasites
Helminths include all of the following EXCEPT:
None of these
Nematodes
Trematodes
Cestodes
Which of the following symbiotic relationships is considered parasitic?
Birds eating the insects from the back of a hippopotamus
Pilot fish swimming under sharks
Tapeworm is in an intestinal tract
Bees transporting pollen to flowers
What does symbiosis mean?
Living together, close relationship between 2 species
Living separately, no relationship between 2 species
Living in a community with no interaction between each other
Living together in fear of each other
Which parasite is physiologically dependent on its host and will not be able to survive without the host?
Erratic Parasite
Permanent parasite
Incidental Parasite
Obligatory Parasite
The term ectoparasites include:
Some protozoa
Some bacteria
Some viruses
Some insects
What type of host is a cow that harbors the asexual stage or the cysticercus larva of Taenia Saginata?
Definitive host
Paratenic Host
Intermediate host
Reservoir host
If a parasite reaches maturity in a host, we call this the _____ host.
Definitive host
Intermediate host
Paratenic host
Maturity host
Which is incorrect among these parasite transmissions?
Malaria plasmodium-vector
Pin worm- inhalation
Trichomonas vaginalis-direct contact
Stronglyloides-mother’s milk
Parasites that mostly feed themselves by sucking blood are known as:
Endoparasites
Obligatory Parasites
Facultative parasites
Ectoparasites
Which is required for a parasite's life cycle to be completed, but in which the parasite does not develop?
Reservoir host
Intermediate host
Definitive host
Dead-end host
Select all of the following is a characteristic of Cestode?
By properly cooking meat (beef), it can be prevented
Characterized by a segmented body that plays an important role in their life cycle
The scolex is the anterior part
It has a “cuticle - non-living outer covering” and it is bilaterally symmetrical
Which of the following is a Trematode’s characteristic?
With a complex life cycle that includes at least two hosts
Cylindrical "roundworms" with no segments
A long, flat body distinguishes it
Prevent mosquito bite to prevent it in general
Which is specifically described as blood-sucking arthropods such as mosquitoes?
Endoparasites
Paratenic
Nematodes
Ectoparasites
Taeniasis is prevented by:
Cleaning cat litter properly
Protecting rice from improperly cooked shellfish
Cooking pork meat properly
Eating uncooked vegetation properly
Snails such as Galba truncatula are hosts for :
Trematode
Protozoa
Cestodes
Nematode
Paragonimiasis can be avoided by:
Properly cleaning dog litter
Keeping rice safe from rats and rodents
Properly cooking beef flesh
Raw freshwater crabs should never be ingested
Which among these parasites live in the freshwater, sea or moist soil and their characteristic movement is by pseudopodia?
Sarcodina
Sporozoans
Ciliata
Ciliophora
The nurse is doing a health teaching and telling mothers, “because of constant anal itching, the infected children do not sleep well, can become nervous and their health will deteriorates," the nurse is referring to:
Toxoplasma gondii
Naegleria fowleri
Enterobius vermicularis
Trypanosoma
Which endoparasite do not have any specialized organ for locomotion?
Ciliophora
Ciliates
Sarcodina
Sporozoans
The nurse is doing a health teaching and telling mothers,”you may accidentally ingest the parasites if you touch your mouth after cleaning a litter box or touching anything that has come in contact with infected cat feces.” The nurse is referring to:
Naegleria fowleri
Strongyloides
Toxoplasma gondii
Trichinella spiralis
The nurse tells people to "Cover your skin. Pants and long-sleeved shirts are advised. Sleep under a Bed nets.” These are prevention for:
Capillaria philippinensis
Plasmodium
Sheep Liver Fluke
Trichinella larvae
There is parasitism when:
Two organisms live together where one benefits and the other is not harmed
Two organisms live together and benefit from each other
Two organisms live together without benefitting or hurting each other
Two organisms live together where one benefits and one is harmed
Several patients with parasitic illnesses are being cared for by the nurse. Which parasitic illness is characterized by stomach cramps, bloating, nausea, and bouts of watery diarrheal intestinal infection?
Giardia Infection
Wuchereria bancrofti
Plasmodium
Human echinococcosis
What are the general characteristics of nematodes?
With 2 major forms cysts and trophozoites
Leaf like flat worms with unsegmented body
Unsegmented bilateral worms with elongated cylindrical bodies
Tapeworms with reproductive system in each segment
Intestinal nematodes include the following, except
Necator americanus
Ascaris lumbricoides
Wuchereria bancrofti
Trichiuris trichura
The following nematodes are transmitted through ingestion, except:
Entorobius vermicularis
No exception
Ascaris lumbricoides
Necator americanus
It is known to be the largest intestinal nematodes.
Entorobius vermicularis
Ascaris lumbricoides
Wuchereria bancrofti
Capillaria philippinensis
They are also known as pinworms:
Entorobius vermicularis
Strongyloides stercolaris
Ancylostoma duodenale
Trichiuris trichuria
Scotch tape test is a diagnostic test for what type of parasitic illness?
Capillariasis
Enterobiasis
Trichuriasis
Ascariasis
A type of parasitism that is being diagnosed by identifying “whipworms eggs”.
Capillariasis
Enterobiasis
Trichuriasis
Ascariasis
This is also known as old world hookworm
Wuchereria bancrofti
Capillaria philipinensis
Ancylostoma duodenale
Necator americanus
The larvae of this thread worm has the ability to penetrate the skin.
Trichiuris trichuria
Capillaria philippinensis
Strongyloides stercolaris
Necator americanus
This is also known as pudoc worm
Capillaria philippinensis
Trichiuris trichuria
Strongyloides stercolaris
Necator americanus
It causes elephantiasis :
None of these
Brugia malayi
Both choices
Wuchereria bancrofti
Trichinella spiralis is characterized by:
They are transmitted by mosquito bites
Their larvae migrate and cause muscle invasion
They have the ability to penetrate the skin
All of these
Necator americanus is also known as
Pin worm
Old world hookworm
New world hookworm
Thread worm
The following are anthelminthic drugs, except:
No exception
Mebendazole
Pyrantel pamoate
Albendazole
Which of the following statements is not true about the general characteristics of cestodes.
They have body cavity and alimentary canal
They have suckers and sometimes with hooks that serves attachments
Sexes are not separate
Majority are long segmented and tapelike
The following are cestodes that are pathogenic to man, except:
Plasmodium
Taenia Saginata
Taenia Solium
Echinococcus Granulosus
Select all of The following are characteristics of Tenia Saginata
They have pear shaped head with four suckers but no hook, no neck
They have globular scolex with four suckers and circular row of hooks that gives it solar appearance
They have flat and long body with hundred of segments
They can grow up to 4-6 meters long
An adult Taenia solium may live up to how many years?
1 year
10 years
25 years
5 years
Diphyllobothrium latum are usually common in:
In China and Europe
Only in India
Only in china
Europe, Asia and America
Elimination of rodents is a control measure for which type of cestode?
Diphyllobothrium
Spirometra
Hymenolopis Nana
Echinococcus
It is the common name of Echinococcus Granulosus:
Fish Tapeworm
Hydatid
Diphyllobothrium
Taenia
It is a type parasite that is known to be able to cause a B12 deficiency.
Taenia
Hymenolepis
Echinococcus
Diphyllobothrium
Foxes are the definitive hosts for E.granulosus.
False
True
It is a type of anthelminthic drug that prevents newly hatched insect larvae from growing and multiplying.
Mebendazole
Ivermectin
Niclosamide
Praziquantel
It is known as Dwarf Tapeworm:
Echinococcus Granulosus
Taenia Solium
Hymenolopis Nana
Taenia Saginata
They are known as the large intestinal fluke:
Schistosoma Japonicum
Schistosoma Mansoni
Fasciola Hepatica
Fasciolopsis buski
It is the accidental host of fasciola hepatica?
Snail
Plant
Human
Sheep
They are known as Oriental lung fluke:
Paragonimus Westermani
Schistosoma Mansoni
Fasciolopsis buski
Schistosoma Japonicum
The animals that serve as the first (or only) intermediate hosts for digenetic flukes are ____________.
Human
Snails
Fishes
Mollusk
Which of the following animals is the second intermediate host for Paragonimus , the lung fluke of dogs, cats and raccoons?
Crayfish
Lizards
Snails
Oligochaetes
Which of the following animals is not known to become infected with Fasciola hepatica?
Horse
Human
Rabbit
Fish
It is the larval stage of a fluke that is covered with cilia and swims about seeking out a snail to serve as an intermediate host.
Cercaria
Miracidium
Redia
Metacercaria
Select all of the Clonorchis Sinensis infection symptoms
Enlarged liver
Hematuria
Jaundice
Bile duct damage
Schistosoma Haematobium is
Lung Fluke
Bladder fluke
Liver fluke
Intestinal Fluke
The life cycle stage of the digenetic trematodes that cause "swimmer's itch" is a ___________.
Miracidium
Metacercaria
Cercaria
Redia
Are gram negative, strictly intracellular bacilli known as what species?
A. Ricketsia
B. Rickettsia
C. Ricketssia
D. Rickesttia
Rickettsial diseases can be dividided into the following major groups, except?
A. Scrub typhus
B. Trench fever
C. Typhus
D. Chronic fever
Disease: Murine typhus Organism:
R. rickettsii
E. chaffeensis
R. akari
R. tsutsugamushi
R. prowazekii
R. quintana
R. typhi
C. burnetii
Disease: Rickettsialpox Organism:
R. rickettsii
E. chaffeensis
R. akari
R. tsutsugamushi
R. prowazekii
R. quintana
R. typhi
C. burnetii
Disease: Scrub typhus Organism:
R. rickettsii
E. chaffeensis
R. akari
R. tsutsugamushi
R. prowazekii
R. quintana
R. typhi
C. burnetii
Disease: Trench fever Organism:
R. rickettsii
E. chaffeensis
R. akari
R. tsutsugamushi
R. prowazekii
R. quintana
R. typhi
C. burnetii
Disease: Q fever Organism:
R. rickettsii
E. chaffeensis
R. akari
R. tsutsugamushi
R. prowazekii
R. quintana
R. typhi
C. burnetii
Disease: Epidemic typhus Organism:
R. rickettsii
E. chaffeensis
R. akari
R. tsutsugamushi
R. prowazekii
R. quintana
R. typhi
C. burnetii
Disease: Ehrlichiosis Organism:
R. rickettsii
E. chaffeensis
R. akari
R. tsutsugamushi
R. prowazekii
R. quintana
R. typhi
C. burnetii
Disease: Rocky mountain spotted fever Organism:
R. rickettsii
E. chaffeensis
R. akari
R. tsutsugamushi
R. prowazekii
R. quintana
R. typhi
C. burnetii
Ethiologic agent of Rickettsialpox:
Rickettsia quintana
E. chaffeensis
Ricketssia akari
Rickettsia prowazekii
Vector of Rickettsialpox
A. Ticks-borne
B. Mite-borne
C. Louse-borne
D. Flea-borne
What is/are the reservoir of the disease called Q fever?
A. Mites (chiggers), wild rodents
B. Humans, squirrel, fleas, flying squirrels
C. Ticks, wild rodents
D. Cattle, sheep, goats, cats
What is/are the reservoir of the disease called Epidemic Typhus?
A. Mites (chiggers), wild rodents
B. Humans, squirrel, fleas, flying squirrels
C. Ticks, wild rodents
D. Cattle, sheep, goats, cats
What is/are the reservoir of the disease called Rocky Mountain spotted fever?
A. Mites (chiggers), wild rodents
B. Humans, squirrel, fleas, flying squirrels
C. Ticks, wild rodents
D. Cattle, sheep, goats, cats
What is/are the reservoir of the disease called Scrub typhus?
A. Mites (chiggers), wild rodents
B. Humans, squirrel, fleas, flying squirrels
C. Ticks, wild rodents
D. Cattle, sheep, goats, cats
Treatment: Tetracycline _______
First choice
Alternate
Treatment: Doxycycline _______
First choice
Alternate
Ethiologic agent of Rocky mountain spotted fever:
R. typhi
R. rickettsii
E. chaffeensis
€ C. burnetii
MOT of Rocky Mountain spotted fever;
Bites of ticks
Bites of mites
Bites of fleas
Bites of lice
Vector of RMSF
Ticks-borne
Mite-borne
Louse-borne
Flea-borne
American Dog Tick also known as?
Grass tick
. Pup tick
Wood tick
Sal tick
Where to check for ticks?
Under the arms
Inside the belly button
Back of the knees
Between the legs
All of the above
How many days for the maculopapular rashes (Centripetally-on hand, feet then trunk) to occur in the disease called RMSF?
1 - 4 days?
2 - 6 days?
3 - 7 days?
One to more weeks
Symptoms of RMSF:
Excessive sweating, Neck stiffness, Diarrhea, Fatigue
Chest pain, Sore throat, cough, Poor balance.
Nausea, vomiting, stomach pain, Light sensitivity.
Cold, Joint pain, Dizziness, Sound sensitivity
Untreated RMSF may result in the following, except;
. Pneumonitis
. Pharyngitis
. Myocarditis
Hepatitis
Encephalitis
Ethiologic agent of Epidemic Typhus
€ Rickettsia quintana
E. chaffeensis
€ Ricketssia akari
€ Rickettsia prowazekii
MOT of Epidemic Typhus
Bites of ticks
Bites of mites
Bites of louse
Bites of fleas
In North America the main reservoir of R. Prowazakii is what?
Squirrel fleas
. Flying squirrels
Humans
Opossum
. Characteristics of Epidemic Typhus
A. Maculopapular rashes
B. Skin pigmentation
C. Brill - Zinsser disease
D. Swelling of the skin
E. No vaccine
Prevention of EPIDEMIC TYPHUS, except;
. Bathe regularly; change into clean clothes
Machine wash and dry infested clothing and bedding using hot water.
Body lice thrive in undercrowded
Wash louse - infested clothing
Ethiologic agent of Endemic Typhus (Murine typhus)
€ Rickettsia typhi
€ Rickettsia felis
€ Ricketssia akari
€ Rickettsia tsutsugamushi
MOT of Endemic Typhus
Bites of ticks
. Bites of fleas
. Bites of louse
Bites of mites
. Ethiologic agent of Scrub typhus
Rickettsia typhi
Rickettsia felis
Ricketssia akari
Rickettsia tsutsugamushi
MOT of Scrub typhus
Bites of ticks
Bites of fleas
Bites of louse
Bites of mites
Ethiologic agent of Q. Fever
€ Rickettsia typhi
€ Coxiella burnetti
€ Ricketssia akari
€ Rickettsia tsutsugamushi
Coxiella burnetti is
A. Gram positive coccobacilli
B. Gram negative coccobacilli
MOT of Q Fever
Inhalation of dust w/ infected aerosols
Inhalation of dust w/ infected milk
Inhalation of dust w/ infected urine
Inhalation of dust w/ infected milk
All of the above
Select all symptoms of Q fever
€ Rash/Lesion
€ Pneumonia
€ Hepatitis
€ Chills
€ Stomach pain
€ Headache
€ influenza
. Ethiologic agent of Trench fever
€ Rickettsia quintana
€ E. chaffeensis
€ Ricketssia akari
€ Rickettsia prowazekii
. MOT of Trench fever
A. Bites of ticks
B. Bites of mites
C. Bites of lice
D. Bites of fleas
Select all symptoms of Trench fever:
€ headache
€ exhaustion
€ pain
€ fever
€ sweating
€ cold
€ nausea
€ roseola rash
Maculopapular rash
Ethiologic agent of Ehrlichiosis
€ Rickettsia quintana
€ E. chaffeensis
€ Ricketssia akari
€ Rickettsia prowazekii
Incubation period
5 - 14 days
8 - 19 days
Ethiologic agent of Relapsing fever
€ Rickettsia quintana
€ E. chaffeensis
€ Borrelia recurrentis
€ Rickettsia prowazekii
MOT of Relapsing fever
. Bites of ticks
Bites of mites
. Bites of lice
. Bites of fleas
Reservoir of Relapsing fever
€ Squirrel
€ Ticks
€ Rodents
€ Opossum
Select all Signs and symptoms of Relapsing fever:
€ Fever
€ Headache
€ Joint pain
€ loss of appetite
€ nausea
€ Cough
€ Cold
€ Vomiting
Treatment of Relapsing fever
€ Doxycycline
€ Metronidazole
€ Tetracycline
€ Pyronidazole
Relapsing fever prevention:
Eliminate circumstances that promote louse infection.
Good personal hygiene
Usage of Lysol on the household materials
. Avoid areas w/ infestation
All of the above
Ethiologic agent of Lyme Disease
€ Rickettsia quintana
€ E. chaffeensis
€ Borrelia Burgdorferi
€ Rickettsia prowazekii
MOT of Lyme Disease
€ arthropods
€ through bite of lice
€ wood rat
€ obligatory host: mammals particularly deer
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