Quizlet 7 Flashcards
(20 cards)
Write what is infective stages __ __ and what is way of infection _ _for trichuris vulpis
Infection by ingestion of L1 by FH
What is the name of a nematode whose adult stages parasitize the horse’s colon and post infecting L4 larvae migrate through the liver and diaphragm?
Strongylus equinus
What methods do we use to diagnose pulmonary nematodes in dogs?
larvascopy, floatation
What parasite has a lemon-shaped egg?
(add pic when pro)
Trichuris
When performing a McMaster method, what do we count?
Eggs, oocysts, larva (?)
What is the sensitivity of the McMaster method? (What is the least number of parasites that could be tested in this method?)
Two cubes x50
· One cube x100
The principle of this method is that if you find only one parasite in two cubes- that means that there are 50/g (50 eggs per gram).
How many egg shells does Toxocara canis has
(add pic when pro)
3 thick shells
What parasite has an XL egg?
(add pic when pro)
nematodirus
What is the exact weight of the fecal sample?
How can we know without having a scale?
3g
We have a plastic tube with two lines. We fill the plastic tube with water up to the lower mark and put the fecal sample in, until the volume of the water reaches the upper mark.
Describe the digestive system of tapeworms
No digestive system, nutrients are absorbed osmotically through the entire surface of the body
Write the name of species the helminths of the pig’s small intestine:
Ascaris suum
macracanthohybcus hirudinaceus
strongyloides ransomi
By coprological examination of sheep, we found the eggs with these properties: Medium in size, polyderic (3-4-5 angulated) asymmetrical; 3 shells; embryonate (oncosphere); light grey. What is your diagnosis? Write the full name
Monienzia expanse
diagnose Muellerius capillaris larvae according to the tail end, which is (describe)
The posterior end of the male is coiled with dorsal spine, transparent body Diagnosis is by larvascopy
Anoplocephala perfoliate is located in
Ileo-caecal junction and caecum of horse (also small intestine?)
By coprological examination of horse, we found the eggs with these properties: Medium in size, wide-oval shape, 3 shells- wavy on the surface, inside with one germ cell, dark brown color. What is your diagnosis? Write the full species name (in Latin).
Parascaris equorum
What is a maritogony in life cycle of trematodes
The metacercaria enters the final host through ingestion. Inside the intestine it sheds its shells and the juvenile is released. The juveniles migrate through the tissues before reaching the bile duct of the liver, where it undergoes sexual maturity into the adult fluke.
Larvocyst Cysticercus pisiformis is formed in
rabbit
What is an infection stage of Toxocara cati
egg with L3
Describe the coenurus larvocyst
It is polycephalic larva that produce both internal and external daughter cysts. Inner layer of cyst wall is composed of germinal epithelium from which numerous scolices develop
Trichongylus axei is parasite with location (in body) and at the host
Infects the abomasum of cattle (small ruminants) and also horses
