Veterinary Parasitology: Small Animal Ova Identification Quiz

1. What is Toxicara canis/cati?

Roundworm ova. Pitted. Cat roundworm ova is smaller.Image source: http://instruction.cvhs.okstate.edu/jcfox/htdocs/clinpara/lst31_40.htm

Tapeworms

Heartworms

Hookworms

Toxicara canis/cati refers to roundworm ova, which are pitted in appearance. It is important to note that cat roundworm ova is smaller in size.

Explanation

Toxicara canis/cati refers to roundworm ova, which are pitted in appearance. It is important to note that cat roundworm ova is smaller in size.

2. What is the scientific name for roundworm ova?

Trichuris trichiura

Ascaris lumbricoides

Enterobius vermicularis

Roundworm ova. Round, smooth. Image source: http://www.capcvet.org/images/Ascarids/ascarids.htm

Toxascaris leonina refers to the specific type of roundworm ova. Ascaris lumbricoides, Trichuris trichiura, and Enterobius vermicularis are different species of parasitic worms.

Explanation

Toxascaris leonina refers to the specific type of roundworm ova. Ascaris lumbricoides, Trichuris trichiura, and Enterobius vermicularis are different species of parasitic worms.

3. What is the morphological characteristic of Trichuris vulpis?

Round structures with no opercula.

Whipworm ova. More symmetrical and larger than Capillaria. Elliptical-shaped, 2 opercula. Image source: http://cal.vet.upenn.edu/projects/dxendopar/diagnostages/caninelibrary/nematodef.html

Thread-like structures with one operculum.

Ribbon-like structures with three opercula.

Trichuris vulpis is characterized by whipworm ova, which are more symmetrical and larger than Capillaria. They have an elliptical shape and two opercula.

Explanation

Trichuris vulpis is characterized by whipworm ova, which are more symmetrical and larger than Capillaria. They have an elliptical shape and two opercula.

4. Which type of ova is associated with Ancylostoma or Uncinaria?

Tapeworm ova

Roundworm ova

Whipworm ova

Hookworm ova. No opercula. Image source: http://cal.vet.upenn.edu/projects/dxendopar/diagnostages/caninelibrary/nematodef.html

Ancylostoma and Uncinaria are types of hookworms, not roundworms, whipworms, or tapeworms. The correct answer is 'Hookworm ova. No opercula.'

Explanation

Ancylostoma and Uncinaria are types of hookworms, not roundworms, whipworms, or tapeworms. The correct answer is 'Hookworm ova. No opercula.'

5. What is Isospora?

An extinct species of dinosaur

A type of freshwater fish

A rare species of flower found in South America

Coccidian oocysts. Round, small, thin shell. Image source: http://theocpug.com/id21.html

Isospora is actually a type of coccidian oocysts, known for their round, small, and thin shell structure.

Explanation

Isospora is actually a type of coccidian oocysts, known for their round, small, and thin shell structure.

6. What is Dipylidium caninum also known as?

Lyme disease

Heartworm

Flea tape. Egg basket. Image source: http://cal.vet.upenn.edu/projects/parasit06/website/lab6new2009.htm

Ringworm

Dipylidium caninum, commonly known as flea tape or egg basket, is a type of tapeworm that infects dogs and cats. It is transmitted through ingestion of infected fleas.

Explanation

Dipylidium caninum, commonly known as flea tape or egg basket, is a type of tapeworm that infects dogs and cats. It is transmitted through ingestion of infected fleas.

7. What is Taenia pisiformis/taeniaeformis known as?

Feline hairball

Avian beak fungus

Rodent tape. Thick shell, radial symmetry, can see hooks. Image source: http://158.83.1.40/Buckelew/Echinococcus%20granulosus%20ova.htm

Canine dewormer

Taenia pisiformis/taeniaeformis, also known as rodent tape, is characterized by a thick shell, radial symmetry, and the ability to see hooks. It is not related to feline hairballs, canine dewormers, or avian beak fungus.

Explanation

Taenia pisiformis/taeniaeformis, also known as rodent tape, is characterized by a thick shell, radial symmetry, and the ability to see hooks. It is not related to feline hairballs, canine dewormers, or avian beak fungus.

8. What is the characteristic feature of Capillaria aerophia?

A species of tapeworm that infects the intestine.

Lungworm ova. 2 opercula. image source: http://www.dpd.cdc.gov/dpdx/html/imagelibrary/A-F/Capillariasis/body_Capillariasis_il1.htm

A type of bacteria found in soil.

A type of virus transmitted by mosquitoes.

Capillaria aerophia is a type of lungworm that produces eggs with two opercula, which are characteristic features. It is important to differentiate between various parasite species based on their unique characteristics.

Explanation

Capillaria aerophia is a type of lungworm that produces eggs with two opercula, which are characteristic features. It is important to differentiate between various parasite species based on their unique characteristics.

9. What does a Giardia canis cyst look like?

Looks like it has eyeballs, water-born disease. Image source: http://monitoria-parasito.blogspot.com/

It resembles a flower shape with multiple petals.

It is transparent and difficult to spot.

It is blue in color and easily distinguishable.

Giardia canis cysts are typically characterized by their appearance resembling eyeballs and are associated with water-borne diseases.

Explanation

Giardia canis cysts are typically characterized by their appearance resembling eyeballs and are associated with water-borne diseases.

10. What does a Giardia canis trophozoite look like?

It has tentacles.

It has spikes.

Looks like it has tail. Image source:http://globalvet.cl/enfermedades-parasitarias-giardiasis/

It has wings.

Giardia canis trophozoites do not have wings, tentacles, or spikes. They are characterized by their tail-like appearance.

Explanation

Giardia canis trophozoites do not have wings, tentacles, or spikes. They are characterized by their tail-like appearance.

11. What is Aelurostrongylus abstrusus?

A type of bacterial infection in cats.

A common skin parasite affecting cats.

A species of tapeworm found in felines.

Feline lungworm larva. Will see larva in feces because it hatches in intestines. Image source: http://medical-dictionary.thefreedictionary.com/Aelurostrongylus

Aelurostrongylus abstrusus refers to the larval stage of the feline lungworm, typically found in the intestines and seen in feces. It is not a bacterial infection, tapeworm, or skin parasite.

Explanation

Aelurostrongylus abstrusus refers to the larval stage of the feline lungworm, typically found in the intestines and seen in feces. It is not a bacterial infection, tapeworm, or skin parasite.

12. What organism is associated with Paragonimus kellicotti?

Canine lung fluke ova. 1 operculum. Image source: http://medical-dictionary.thefreedictionary.com/Paragonimus+kellicotti

Trematode worm

Tapeworm larva

Coccidia parasite

Paragonimus kellicotti is a species of lung fluke that infects the lungs of various mammals, including dogs. It produces ova with a distinct operculum structure.

Explanation

Paragonimus kellicotti is a species of lung fluke that infects the lungs of various mammals, including dogs. It produces ova with a distinct operculum structure.