Shared Flashcard Set

Details

Tick, Tick, Tick
Parasitology - Ticks!
60
Veterinary Medicine
Professional
04/16/2013

Additional Veterinary Medicine Flashcards

 


 

Cards

Term
Spinose Ear Tick
Found in warm places - mainly out west
Often Feeds at night
Prevalent in wild turtkeys
Causes relapsing fever (Borrelia spp.)
Definition
Otobius megnini
Term
Relapsing fever is caused by
Definition
Borrelia spp.
Term
Otobius megnini
Definition
Spinose ear tick
Term
Otobius megnini is a
Definition
soft tick
Term
Soft ticks have their capitulums located
Definition
ventrally
Term
How can you tell the species of the engorged tick?
Definition
Look at the mouth parts
Term
Are you familiar with the location of the captitulum, festoons, and scutum of a tick?
Definition
Yes
Term
Are ticks considered insects?
Definition
NO
Term
What class do ticks belong to?
Definition
Arachnid
Term
Nymphs and adults have _____ legs.
Definition
8
Term
Larval stages of ticks have ___ legs
Definition
6
Term
Ixodid means
Definition
hard
Term
Which is harder to eradicate? A one host or two host tick?
Definition
two host
Term
Rhibicephalis is a ____ host tick
Definition
1
Term
Which sex is known for taking a large blood meal and becoming 'engorged'?
Definition
female
Term
What happens if the barbed chelicerae remains lodged in the skin?
Definition
strong immune response - very itchy
Term
Study the mouthparts of each spp. of tick
Definition
Will do.
Term
Where is the anal groove found?
Definition
Ventrally on all life stages
Term
Will the anal groove of the tick be seen if engorged?
Definition
No
Term
Describe the mouthparts of Ixodes spp.
Definition
helicoptor maple-leaf shaped
Term
Where is Ixodes found?
Definition
Pacific Northwest, Gulf Coast, East Coast, New England, Northern Mid-west USA
Term
T/F - infestation of Ixodes spp. in the East TN area is rare
Definition
True
Term
Rhipicephalus sanguineus
Definition
Brown dog tick
Term
Brown Dog Tick
Definition
Rhipicephalus sangineus
Term
Head piece characteristic of Darth Vader
Box turtle carapace looking color
Known for survival indoors
Favor dogs
Definition
Rhidicephalus sanguineus - brown dog tick
Term
Family Ixodidae
Definition
Hard ticks
Term
Family Argasidae
Definition
Soft ticks
Term
complete life-cycel on one host
only adults drop off host after mating
Definition
1 host tick
Term
larvae and nymphs feed on one host then drop off
adults feed on bigger host
Definition
2 host tick
Term
all stages are found on different hosts
attach to host, take blood meal, then drop off to molt
can survive months to years between meals
Definition
3 host tick
Term
Egg->6-legged larvae->8-legged nymph->8-legged adult
Definition
general life cycle of Ixodid
Term
T/F - nymphs and adults are less likely to harbor pathogens than larvae
Definition
False
Term
Why is it important to determine a 6 legged larvae from an 8 legged nymph or adult?
Definition
because nymphs and adults are more likely to carry pathogens
Term
Vectors of this tick are Babesia canis, tularemia, Ehrlichia canis, and RMSF
Definition
Rhipicephalus sanguineus - brown dog tick
Term
Most important diseases transferred by Rhipicephalus sanguineus are
Definition
Babesia canis and Ehrlichia canis
Term
Only female has a white dot in this spp.
Definition
Amblyomma americanium - Lone Star Tick
Term
Amblyomma americanum
Definition
Lone Star Tick
Term
Distribution of Amblyomma americanum
Definition
Eastern half of the United States starting at Texas and moving east; running from north to south
Term
Describe Amblyomma americanum's mouthparts
Definition
long mouth parts
Term
The saliva of this spp of tick is very antigenic
Definition
Amblyomma americanum - lone star tick
Term
Festoons present
Long mouth parts
Star eye disease
Female has white dot
Saliva very antigenic
Definition
Amblyomma americanum
Term
Star eye disease
Definition
rash or infection caused by Amblyomma americanum - lone star tick
Term
Two genus of ticks that are most come in TN
Definition
Dermacentor and Amblyomma
Term
Dermacentor variabalis
Definition
American Dog Tick
Term
American Dog Tick
Definition
Dermacentor variabalis
Term
Stubby mouth parts and mottled appearance
slower moving - mone one leg at a time (tortoise walking)
Definition
Dermacentor variabalis
Term
distribution throughout california and all over the eastern and middle US (not out west - excluding California)
Definition
Dermacentor variabilis - American Dog Tick
Term
Known for transmitting RMSF
Definition
Dermacentor variabilis
Term
80% mortality - if see spot rashes go to hospital immediately!
Definition
RMSF
Term
Amblyomma maculatum
Definition
Gulf coast tick
Term
Gulf coast tick
Definition
Amblyomma maculatum
Term
Long mouth parts
moving north into TN
Ornate pattern
Definition
Amblyomma maculatum
Term
long mouth parts and short base capitulum , often confused with Dermacentor so ID is primarily by mouth parts
Definition
Amblyomma maculatum
Term
Distribution currently restricted to Southeastern USA and East coast - continually spreading
Definition
Amblyomma maculatum
Term
Haemaphysalis
Definition
commonly mistaken for Ripicephilus
rarely seen on dogs
Term
3 host tick
larvae and nymphs feed on birds, rodents, and larger mammals
Found in eastern US
Rarely seen on dogs
Commonly mistaken for Rhipicephalus
Definition
Haemaphysalis - Ixodidae
Term
Bell shaped mouth parts
Almond color
Definition
Haemaphysalis
Term
Common spp. of ticks found on TN dogs
Definition
D. variabilis, A. americanum, R. sanguineus,
Term
Common spp. of TN ticks found on cats
Definition
D. variabilis, A. americanum
Term
Prevalence of most common spp. of ticks on large mammals in TN
Definition
A. americanum and A. maculatum, Ixodes spp. more common in middle TN
Supporting users have an ad free experience!