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5 Written Questions

5 Matching Questions

  1. oxyuris equi
  2. onchocerca cervicalis
  3. equine lice
  4. anaplocephala
  5. chorioptic mange
  1. a adults are large, segmented with scolex at anterior end. Up to 8 m long. Eggs are irregularly shaped and contain 6 hooked larva. Similar to monezia in ruminants.
  2. b often show no clinical signs. Can cause itchy lesions, worse in the summer. Adults in ligaments and tendons can cause swelling, pain and lameness.
  3. c cause severe pruritis. Infestation of lower limbs can cause foot stamping. Can also infect the tail head region in horses.
  4. d mainly a winter problem. can survive 2-3 days off of the host. Lay nits on hair shaft. They are host specific and transmitted by direct contact.
  5. e affects all ages. May cause anal pruritis, rubbing bum, broken tail hairs, rat tail.

5 Multiple Choice Questions

  1. adults release proglottids in small or large intestine. Ova are passed in the feces and ingested by a free living mite. host ingests mite.
  2. adults are rarely seen, live in the nuchal ligament and sometimes ligament and tendons of distal extremeties. Microfilaria found in conjunctiva and skin.
  3. adults live in the nucei ligament. Females produce microfilaria that migrate to the dermis.
  4. bloodworms.
  5. pig whipworms.

5 True/False Questions

  1. oxyuris equitreat pigs with ivome, dectomax or safeguard.


  2. ascaris suumare a potentially zoonotic parasite if humans ingest infested eggs.


  3. eqvalan, panomec, questtreat most equine endoparasites with these 3 dewormers.


  4. strongyloides westeria parasite which invades the spinal cord and causes a disease called equine protozoal myeloencephalitis.


  5. large strongylesCan interfere with blood supply to gut and cause infarction and death. Likely involved with some types of colic in horses.


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