Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Clinical Pathology I
Flies, Lice, Fleas, Mosquitoes, Mites, and Ticks
| Question | Answer |
|---|---|
| Where does Knemidokoptes mites usually prefer to burrow on birds? | nonfeathered portions such as feet, legs, and face |
| How is Knemidokoptes mites diagnosed? | skin scrape |
| The Scaly leg mite is the common name for what mite? | Knemidokoptes |
| What is the name of the most common dog louse seen in the US and can act as an IH for the tapeworm Dipylidium caninum? | Trichodectes canis |
| Is trichodectes canis an Mallophaga or Anoplura type of lice? | Mallophaga |
| Where is trichodectes canis found on the dog? | eggs are glued to hairs |
| What is the main damage that Hypoderma bovis does to cattle? | migrating larvae make necrotic tracks in muscle tissue and the hide of the cow is damaged for leather production |
| What is the common name for Haematobia irritans? | horn fly |
| What is it about the horn fly, Haematobia irritans, that you would be able to identify it on the cow? | They cluster on the dorsum, back, of cattle and their heads will always be pointing toward the ground. |
| What is the difference in Mallophaga lice and Anoplura lice? | Mallophaga are chewing lice and Anoplura are sucking lice.` |
| The egg stage of lice are called what? | nit |
| Define fomites? | inanimate objects |
| Define pediculosis. | infestation by lice |
| Anoplura lice suck what from the host? | blood |
| The fly that is commonly called the "Black fly" is scientifically named what? | Simulium |
| The nocturnal, tiny sand fly transmits what protozoan zoonotic parasite? | Leishmania |
| What are the scientific names of the sand fly? | Lutzomyia and Phlebotomus |
| If you are at the beach and something constantly keeps biting you it is probably what? | No-See-Ums |
| What species are No-See-Ums in? | Culicoides |
| No-See-Ums serve as IH for what nematode seen in the skin of horses? | Onchocerca cervicalis |
| The mosquito that we come in contact with is most likely from what species? | Culex |
| The Culex species feed on what? | blood |
| Where do Culex species females lay their eggs? | perpendicular to the surface of water |
| The Culex species is the IH for what nematode found in dogs? | Dirofilaria immitis |
| What is the common name for Chrysops species of fly? | deerfly |
| What is the common name for Tabanus species of fly? | horsefly |
| Which species is larger, Chrysops or Tabanus? | Tabanus |
| Deerflies and Horseflies may act as mechanical transmitters of what virus that can affect horses? | EIA-equine infectious anemia |
| If the ears of a german shepherd are raw, bleeding and pruritic which fly could be responsible for this? | Stomoxys calcitrans |
| What is the common name for Stomoxys calcitrans? | Stable fly, biting house fly |
| Stable flies can be a vector for what disease that affects horses? | EIA-equine infectious anemia |
| Why is Haematobia irritans flies commonly called Horn flies? | That is where they like to cluster. |
| Why does the horn fly also like to cluster around the cows shoulders, back and sides? | The tail usually can't swish them off in these areas so they can continue to feed. |
| Which fly causes the greatest loss in cattle by sucking their blood and causing milk reduction and weight reduction? | Haematobia irritans (Horn Fly) |
| Where does Melophagus ovinus deposit their larva? | in the sheeps wool or goats fleece |
| What economical problems can Melophagus ovinus cause? | damage to wool or fleece, anemia |
| The scientific name of the House fly is what? | Musca domestica |
| Why are Musca domestica flies so bad? | They are designed to spread germs! |
| How does the House fly digest its food? | By being a "vomit drop feeder" which means they vomit their stomach contents onto their next meal to digest it. |
| What is the name of the Face fly? | Musca autumnalis |
| Musca autumnalis usually only bother what species? | cattle |
| What does Musca autumnalis feed on? | saliva, tears, and mucus. they will lap up blood from the bite of another fly bite on a cow |
| Musca domestica and what other fly are both known for vomit drop feeding and being a fly that is designed to spread germs? | Sarcophaga or Flesh Fly |
| Define myiasis. | tissue invaded by maggots |
| If a cat lives outside and has an abscess that has ruptured, it is summer time, what is the common called condition that could happen? | fly strike-maggots |
| Does an open wound always have to be present for a fly strike to occur? | No. It can happen in animals that have feces and urine stuck in their hair. |
| This fly has been eradicated from the US but we are always on the lookout for it to re-emerge. How could this happen? | Animals that travel out of the country and come back. |
| The eradicated fly is commonly called the Screwworm fly. What is the scientific name? | Cochliomyia hominivorax |
| What does Cochliomyia hominivorax feed on? | FRESH skin wounds such as incision sites, umbilical cords of newborns, lacerations. |
| If a cat or squirrrel comes in and has a swollen, cystlike SQ hole in it, what could it be? | Cuterebra |
| What is one of the purposes of the hole of the Cuterebra? | for it to be able to breathe |
| What are the hosts for Oestrus ovis? | sheep and goats |
| Where does Oestrus ovis lay their larvae? | nares (nose) |
| What is the most common flea found on dogs and cats? | Ctenocephalides felis |
| What do fleas eat? | blood from the host |
| What are the four stages of the flea life cycle in order? | adult, egg, larval, and pupal |
| How long does it take for flea eggs to hatch? | 2 weeks |
| When the eggs hatch what do the larvae eat? | dead skin, dead hair, flea feces |
| How long can the pupal stage of the flea last? | months |
| What makes the pupal stage emerge from the coccoon? | air pressure, vibrations, warmth due to a warm blooded host |
| What is flea dirt? | excreted digested blood/feces from the flea |
| Where are Sarcoptidae mites found on an animal? | within the epidermis |
| Where are Psoroptidae mites found on an animal? | on the surface of the skin or within the external ear canal |
| Define acariasis. | infestation of domestic animals by either mites or ticks |
| How does a dog or person become infested with sarcoptes scabei? | direct contact with an animal that is infected |
| What are the usual areas that become scaly, crusty, and raw when an animal is infected with Sarcoptes scabei? | ears, lateral elbows, ventral abdomen |
| How is Sarcoptes scabei diagnosed? | skin scraping |
| When I say "dried cornflakes cereal" what parasite comes to mind? | Psoroptes cuniculi |
| Where is Psoroptes cuniculi usually found on a rabbit? | ears |
| What is the scientific name of the ear mite in dogs and cats? | Otodectes cynotis |
| How can Otodectes cynotis be diagnosed? | by using an otoscope and looking in external ear canal for the mites or take a sample of exudate from ear canal and break it up in a small amount of mineral oil and look for the adults or eggs on 10x |
| Is Otodectes cynotis contagious? | yes from animal to animal but not to humans |
| What is the scientific name for Red Mange? | Demodectic mange mites |
| Where do demodex mites live? | hair follicles and sebaceous glands |
| How is demodex diagnosed? | skin scrape |
| What two forms of demodex are seen in veterinary medicine? | localized and generalized |
| What does localized demodex look like? | patchy alopecia-just a few hairless areas |
| What does generalized demodex look like? | diffuse alopecia, erythema, and secondary bacterial contamination over the entire body. |
| How do dogs become infested with demodex? | because of poor immune system these dogs cannot fight off the infestation |
| If a dog comes in and is itching really badly and you perform a physical exam. You notice on the skin an orangy-red area of crustiness. What could the parasite be that is causing the dermatosis? | Trombicula |
| What is the common name for Trombicula? | chiggers or red bugs |
| On the anterior end of this fur mite there are enormous hooklike mouthparts. What is this parasite? | Cheyletiella parasitivorax |
| What is the common name for cheyletiella parasitivorax? | walking dandruff |
| How can walking dandruff be diagnosed? | by observing with a magnifying lens the mites moving around on the dorsal midline and head of host |
| What two families of ticks are of importance in veterinary medicine? | argasid and ixodid |
| What is a seed tick? | six-legged larvae |
| What part of the tick causes tick paralyzes? | salivary secretions of some female ticks |
| Infestation of mites or ticks is called what? | acariasis |
| Is Otobius megnini a soft tick or hard tick? | soft (argasid) |
| Where is Otobius megnini usually found on the host? | external ear canal |
| What is the common name for Otobius megnini? | Spinose ear tick |
| Argas persicus is found in what species? | avians |
| What is the common name for Argas persicus? | Fowl tick |
| When do Argas persicus feed on birds? | nighttime |
| where do Argas persicus stay during the day? | In cracks and crevices of bird roost building |
| Which tick is the vector for spreading Lyme disease to humans? | Ixodes scapularis |
| What disease does the Rhipicephalus sanguineus tick transmit to dogs? | babesia canis |
| What is the common name for Rhipicephalus sanguineus? | brown dog tick |
| The Dermacentor variablilis and Dermacenter andersoni can serve as a vector for what disease? | Rocky Mountain spotted fever |
| What physical feature makes Amblyomma Americanum distinguishable from other ticks? | white spot on the apex of scutum |
| What is the common name for Amblyomma Americanum? | lone star tick |
| What is the scientific name of the Gulf Coast tick? | Amblyomma maculatum |
| What does pentastome mean? | five mouths |
| Since Linguatula serrata live in the nasal passages and sinuses of dogs what signs of infection can be seen with this pentastome? | sneezing, difficulty breathing, restlessness, can't smell well, rhinitis, nose bleeding, nasal discharge |
| How does a dog become infected with Linguatula serrata? | By eating an IH-cat, rat, porcupine, guinea pig, rabbit, hedgehogs, pig or ruminant |
| How is Linguatula serrata diagnosed? | fecal flotation or nasal swabs |
| What is the common name for Gaterophilus? | bot flies |
| What activates the nits on the legs of horses to hatch? | horse licks itself so their tongue and saliva stimulate the larvae to hatch |
| Adult female Gasterophilus flies lay eggs on what areas of the horse? | fetlocks of forelegs, chin, shoulders |
| Gasterophilus migrate from the oral cavity to where? | cardiac portion of stomach |
| How long does Gasterophilus stay attached to the stomach? | 10-12 months |
Created by:
spoitevint
Popular Veterinary sets