Studied by 4 people
nemathelminthes
phylum of round worms
egg
can be classified as fertilized or unfertilized
ova
can be classified as embryonated or unembryonated
ascaris lumbricoides
most common human helminthic infection globally
giant intestinal roundworm
common name of ascaris lumbricoides
small intestine
habitat of ascaris lumbricoides
humans
final host of ascaris lumbricoides
embryonated egg
infective stage of ascaris lumbricoides
egg
diagnostic stage of ascaris lumbricoides
ingestion of embryonated egg (soil)
mode of transmission of ascaris lumbricoides
200,000
Female worm produces approximately ____ eggs per day.
moist, warm, shaded soil
optimum environmental conditions for the larvae to develop
male
curved posterior tail
female
long pointed tail
cuticle
a tough layer of protection in the outermost layer
genital girdle
responsible for the contractions for the releasing of the ova in females
trilobated lips
Ascaris lumbricoides has also been called a “good kisser” because it has ____ for both females and males
albuminoid coat or mammilary coat
outer layer of unfertilized ovas
glycogen layer
middle layer of unfertilized ovas
inner lipoidal and vitelline
unfertilized eggs lack the _____ layer
corticated
when albuminoid/mammilary coat is prominent
decorticated
egg is smooth and the mamillary coat is not present or extremely minimal
loeffler's syndrome
ascaris lumbricoides causes
Albendazole & Mebendazole
ascaris lumbricoides drug treatment
intestinal obstruction
if a large amount of eggs ingested of about 200,000 eggs per day overtime if chronically progressed may lead to ____.
trichuris trichiura
Also called Trichocephalus triciura ● Soil Transmitted Helminth (STH)
whipworm
common name of trichuris trichiura
large intestine
habitat of trichuris trichiura
humans
final host of trichuris trichiura
embryonated egg
infective stage of trichuris trichiura
egg
diagnostic stage of trichuris trichiura
ingestion of infective stage
mode of transmission of trichuris trichiura
4-8 years
trichuris trichiura lifespan
single lanceolate specule
male end of the posterior has a ___
barrel, football, japanese lantern, lemon
trichuris trichiura resembles __
bipolar
has ___ mucus plugs
Capillary philippinensis ova
trichuris trichiura is confused with __
pin-fashion
adult attaches and burrows its anterior end into the intestinal mucosa in a ___ manner
enterobius vermicularis
originally called the Oxyuris vermicularis
pinworm, seatworm (tiwa), worm of society
common names of enterobius vermicularis
large intestine
habitat of enterobius vermicularis
humans
final host of enterobius vermicularis
embryonated egg
infective stage of enterobius vermicularis
egg
diagnostic stage of enterobius vermicularis
inhalation; autoinfection, retroinfection
mode of transmission of enterobius vermicularis
autoinfection
you infect yourself such as through ingestion of self-contaminated foods
retroinfection
migration of newly hatched larvae from the anal skin back into the rectum
oviposition
females die after __
copulation
males die after ___
2 months
adult life span of enterobius vermicularis
Gravid females
____ migrate nocturnally outside the anus and oviposit while crawling on the skin of the perianal area
cephalic alae/lateral
adult enterobius vermicularis possess ____ wings
esophageal
adult enterobius vermicularis possess ____ bulb that is flask shaped
male
shorter and thinner; curved posterior talk
females
longer and wider; pointed posterior tail
plano convex/lopsided/D-shaped egg
enterobius vermicularis egg shape one side is flat while the other is curved
perianal swab
diagnosis of enterobius vermicularis
male trichuris trichiura
identify
enterobius vermicularis egg
identify
cephalic alae or lateral wings
identify
true
T/F: Cephaluc alae is found in the anterior end of adult Enterobius vermicularis
false
T/F: Male pinworm can be recovered in scotch tape swab
Note 
Flashcard (46)