WorksheetsParasitology Quiz 3_Nematodes
Total questions: 35
Worksheet time: 28mins
The large roundworm that causes duct blockage, intestinal blockages and nutritional deficiency.
(a)
Ascaris lumbricoides infects humans via what route?
fecal-oral route
oral-fecal route
skin penetration
nasal cavity
Major hosts for Ascaris lumbricoides are:
Humans and swine
Humans and rats
Humans and freshwater fishes
Humans and insects
A parasitic roundworm with a distinct whip-like posterior end that infects the large intestines of humans.
(a)
This parasite's eggs were passed in the feces of an infected person, and if that infected person defecates outside, the eggs will be deposited in the soil, where they will mature into an infective stage.
roundworm
pinworm
tapeworm
whipworm
Also known as whipworm infection which occurs through ingestion of the parasite's eggs and is more common in warmer climate areas.
Strongyloidiasis
Enterobiasis
Trichinellosis
Trichuriasis
Give the correct answers accordingly.
Old world hookworm ; New world hookworm
Ancylostoma duodenale ; Necator americanus
Necator americanus ; Ancylostoma duodenale
Ancylostoma braziliense ; Ancylostoma caninum
Ancylostoma caninum ; Ancylostoma braziliense
Hookworm species that are known to infect dogs and domestic cats are:
Ancylostoma duodenale ; Necator americanus
Necator americanus ; Ancylostoma duodenale
Ancylostoma braziliense ; Ancylostoma caninum
Ancylostoma caninum ; Ancylostoma braziliense
The two most common types of hookworm that infect humans are:
Ancylostoma duodenale ; Necator americanus
Ancylostoma tubaeforme ; Ancylostoma pluridentatum
Ancylostoma ceylanicum ; Bunostomum phlebotomum
Ancylostoma caninum ; Ancylostoma braziliense
Identify the correct answer.
Ancylostoma duodenale has 2 pairs of teeth and more defined hook.
Necator americanum has 2 pairs of teeth and more defined hook.
Ancylostoma braziliense has 2 pairs of teeth and more defined hook.
Ancylostoma caninum has 2 pairs of teeth and more defined hook.
Hookworm infection is transmitted primarily by
eating unwashed and undercooked fish meat.
walking barefoot on contaminated soil.
ingesting embryonated eggs.
inhaling contaminated air.
The infection of this parasite usually occurs via ingestion of infectious eggs by direct anus-to-mouth transfer by fingers.
(a)
Where does gravid adult female Enterobius vermicularis deposit their eggs?
on cecum and ileum.
on small intestine.
on perianal folds.
on intestinal mucosa.
This infection can be diagnosed by applying cellulose tape to the anus of a suspected patient.
Strongyloidiasis
Enterobiasis
Trichinellosis
Trichuriasis
A child complaining of rectal itching and insomnia is most likely suffering from
pinworm
whipworm
hookworm
threadworm
The life cycle of this nematode is a bit complicated, alternating between free-living and parasitic life cycles and involving autoinfection.
(a)
The primary mode of infection is through contact with soil that is contaminated with free-living larvae.
Strongyloidiasis
Enterobiasis
Trichinellosis
Trichuriasis
Only this kind of threadworms can enter the parasitic life cycle. Once mature, they undergo parthenogenesis.
female larvae
female oocyst
male trophozoite
male microfilariae
This intestinal nematodes cannot be transmitted human to human and requires intermediate freshwater fish host.
(a)
The causative agent of this disease, Capillaria philippinensis, was discovered in Northern Luzon, Philippines in 1964.
intestinal capillariasis
eosinophilic capillariasis
lymphatic capillariasis
pulmonary capillariasis
The intermediate hosts of Capillaria philippinensis are
birds
snails
fish
slugs
A parasitic nematode found in pigs, rats, bears, and humans that causes the disease trichinosis.
(a)
Where can encysted larva (infective stage) of Trichinella spiralis be found?
muscle of rodents and other animals.
muscle of canines and other animals.
muscle of chimpanzees and other animals.
muscle of swine and other animals.
This nematode is commonly found in the pulmonary arteries of rats, where it produces fertilized eggs that develop into first-stage larvae before becoming infectious.
(a)
Angiostrongyliasis is caused by a parasitic nematode, which is the most common cause of
primary amebic meningoencephalitis
eosinophic cerebral edema
neurological encephalitis
human eosinophic meningitis
The primary intermediate hosts of Angiostronglus cantonensis are _________, where larvae develop until they are infectious.
snails and slugs
pigs and cows
fish and crabs
dogs and cats
: Which of the following does not accurately describe Lymphatic filariasis?
It mainly affects the lower limb
Chyluria is the most common manifestation
The intermediate vector is the mollusc
It is caused by the parasitic worms Wuchereria bancrofti
Elephantiasis is a chronic condition caused by
pinworm
filarial parasites
hookworm
intestinal nematodes
A parasitic filarian nematode spread by mosquito bite.
(a)
Give the correct answer of Wuchereria bancrofti hosts.
Intermediate hosts ; Definitive hosts
mosquitos ; human
human ; mosquitos
elephant ; mosquitos
mosquitos ; gorillas
Wuchereria bancrofti, the causative agent of lymphatic filariasis is transmitted by mosquito species belonging, except
Anopheles
Aedes
Culex
Filaria
The disease caused by a mosquito bite infected with Wuchereria bancrofti that causes inflammation and thickening of the skin and tissue.
Filariasis
Elephantiasis
Trichinosis
Bancroftiasis
Elephantiasis commonly affects the following parts of the body, except
arms
male and female genitals
legs
central nervous system
Man to man transmission of Brugia malayi filarial nematode occurs by the bite of
Anopheles and Mansonia mosquitos only
Aedes and Culex mosquitos only
Culiseta and Psorophora mosquitos only
Toxorhynchites and Wyeomyia mosquitos only
Both Wuchereria bancrofti and Brugia malayi nematodes causes lymphatic filariasis. Their only difference is their
intermediate hosts
definitive hosts
disease cause
life cycle
