Quizlet 3 Flashcards
(20 cards)
Non-microscopic method of detecting Oxyuris in horse
Perianal Swab/scraping
L.C of Taenia pisiformis. Host and name of larval stage
- IH: Rabbit and hares
- FH: Dog, fox and other canidae
- Rabbit ingest egg. Egg hatches in small intestine
- Larva penetrates the intestinal wall, and travel to the liver via the blood
- Develops in liver for two to four weeks
- Then goes to peritoneal cavity and attach to viscera
- When dog ingest rabbit, the cysticercoid attaches to small intestinal wall, by its proglottids
- Gravid proglottids detaches and pass in feaces
Tapeworms of ruminants are Anoplocephalidae
Monezia expanza/benedeni
Larval stage of Taenia hydatiginea
Cysticercus tenuicollis
Parampistomum is located in
Mainly fore stomachs of ruminants
- Adult: rumen and reticulum
- Larva: Duodenum and abomasum
Common name of cestodes
tapeworms
L.C of Echinococcus spp
- Gravid segements are excreted in faeces of dog
- They are very resistant to climatic conditions
- Eggs are spread by wind or flies
- Eggs are ingested by intermediate host: man, domestic and wild animals
- Embryos are disseminated via blood
- and carried to various tissues and organs, and form hydatid cysts
- Hydatid cysts are lined with germinative epithelium
- produces broad capsules that consist of several scolices
- Part of germinative ephithelium may occasionally form daughter cysts by budding
- Final host acquire infection by ingesting viscera containing cysts
Which muscles are the predilection sites for nematode detection (trichinella)
- Adult: s. intestine
Larva: Striated mucles: Diaphragma, intercostal and masseteter
Platehelminths common name
flatworms
Alvelocosis is caused by:
Echinococcus multiocularis
Taenia ovis: IH, site, metacestode
- IH sheep
- FH carnivore small intestine
- Cysticercus ovis
Oesophagostomum is diagnosed by?
flotation method
Tapeworms of horse.
- Anoplocephala magna, perfoliata,
- Paranoplocephala mamillaria
Which worms can we find in pig faeces?
Trematoda: Fasciola hepatica, Fasciolopsis buski
Cestoda: Cysticercus cellulose & tenuicollis, Echinococcus granulosis
Nematoda: Strongyloides ransomi, Hyostrongylus rabidus, Oesophagostomum spp., Metastrongylus spp., Ascaris suum, Trichuris suis….
Acantocephala: Macracanthoryncus hirudinaceus
1st IH of dicrocoelium
land snails-helicella, zebrine
Toxocara canis location host
small intestine of dog and cat
Diphylidium caninum in which animal
- IH fleas and lice larvae as cysticercoids
- FH dog
Diagnosis methods in ru faeces.
sedimentation, larvoscopy (baerman or vajda) or flotation
Which size of egg is 45um?
small
What methods do we use in intravital diagnosis
- coprological exam (larvoscopy, sedimentation, flotation)
- anal smears
- erological
clinical
