Endoparasties - test

Question 1

Nematodes shed proglottids

Answer 1

False - Cestodes do

Question 2

Trematodes have a cap like structure known as operculum

Answer 2

True

Question 3

Toxoplasma gondii is larger than isospora spp

Answer 3

False

Question 4

The parasite nanophyetus salmincola lives in the large intestines and causes a watery diarrrhea

Answer 4

True

Question 5

A host usually only has one tapeworm but will have many roundworms

Answer 5

True

Question 6

Fecal flotation is based on the principal that the parasite eggs will float in the solution used. The solution needs to have what greater than that of the egg?

Answer 6

Specific gravity

Question 7

Cutaneous larval migrans are caused by what

Answer 7

hookworms (Nematodes)

Question 8

Gratrophilus is more commonly known as what, and where does it lay eggs?

Answer 8

Bot fly, horses legs

Question 9

What does PPP stand for, and what does it mean?

Answer 9

Prepatent period, amount of time from infection to evidence of parasites.

Question 10

Which parasite eggs are often too heavy to float in traditional fecal float?

Answer 10

Trematodes, use fecal sediment method

Question 11

Lung worm larva can look similar to any other larva. How can you tell them apart?

Answer 11

There is a hook at the end of the tail.

Question 12

Seen at 10x in a dog?

Answer 12

Hookworm

Question 13

Seen at 50x in domesticated animals

a. life state is called?
b: this life stage is called?

Answer 13

Giardia

a. oocyst
b: trophozoite