All Things Parasites Flashcards

Adult Dipylidium caninum

Adult Dipylidium caninum

Adult Trichuris vulpis

Ancylostoma caninum
Hookworm

Ancylostoma caninum
Hookworm

Ancylostoma caninum ova
Hookworm ova

Ancylostoma caninum
Hookworm ova

Cutaneous larval migrans caused by Hookworms

Diplyidium caninum

Dipylidium caninum
egg sack

Dipylidium caninum

Dipylidium proglottid

Fluke

Fluke ova

Fluke

Dipetalonemia reconditum
Microfilaria

Dirofilaria immitis
Microfilaria

Fluke ova

Dirofilaria immitis
Microfilaria

Toxocara canis
ocular larva migrans

Toxascaris leonina ova

Toxascaris leonina ova

Toxascaris leonina ova

Toxocara canis
Ancylostoma caninum

Toxocara canis ova
Roundworm

Toxocara cati ova

Toxocara cati

Toxocara cati ova

Trichuris vulpis ova

Trichuris vulpis ova

Amblyomma americanum

Babesia canis

Bot Fly

Cheyetiella

Ctenocephalides felis

Cuterebra larva

Demodex canis

Dermacentor variabilis

Ehrlichia morulae

Ixodes scapularis

Ligognathus steosus

Otodectes cynotis

Rhipicephalus sanguineus

Sarcoptes scabiei

Trichodectes canis
What are the 2 major classes of Endoparasites?
- Helminths
- Unicellular Organisms
What are the types of Helminths?
- Nematodes
- Cestodes
- Trematodes
What are the types of Unicellular Organisms?
- Coccidians
- Protozoans
What are the types of Roundworms?
- Toxocara canis
- Toxocara cati
- Toxascaris leonina
Where do the Roundworms live?
Small Intestine
How long can a Roundworm get?
3-18cm
What are the methods of transmission for the Roundworm?
- fecal/oral
- transplancental
- transmammary
- predation of host
What are the locations of the life cycle of the Roundworm?
- eggs ingested
- hatch in stomach
- penetrate bowel wall
- enter portal bloodstream
- wander through liver
- end up in lungs
Where do Roundworms mature?
small intestine
How long is the life cycle of the Roundworm?
4-5 weeks
What larval migrans can Toxocara larva cause?
- ocular
- visceral
- neural
What are the types of Hookworms?
-Ancylostoma caninum
Where does the Ancylostoma species live?
small intestine
What are the methods of transmission for the Hookworms?
- fecal/oral
- transmammary
- skin penetration
How long is the growth and maturation period after ingestion of the Ancylostoma species?
18-21 days
What are the life stages of the Ancylostoma species?
- Egg L1
- Hatching L2
- Larval L3
What is the infective stage of the Ancylostoma species?
Larval L3
What are the types of Whipworms?
-Trichuris vulpis
How are Trichuris vulpis eggs passed?
stool
Which egg is double operculated?
Trichuris vulpis
What is the medical name of the Heartworm?
Dirofilaria immitis
What is the vector for the Heartworm?
Mosquito
What is the pseudo heartworm?
Dipetalonema reconditum
What are the main differeces between the real and fake heartworms?
- head shape
- tail shape
- type of movemement
Where does the Heartworm lodge itself?
- venous return of the heart
- right atria and ventricle
What is the prepatent period for the Heartworm?
6 months
What are the classes of Heartworm Disease?
- class 1 (mild)
- class 2 (moderate)
- class 3 (severe)
- class 4 (very severe)
What are the types of Cestodes?
- Dipylidium caninum
- Taenia species
- flea (as intermediate host)
What is the most common