Chapter 8 (arthropods) Flashcards
characteristics of adult arthropods
have jointed legs and an exoskeleton
3 classes of arthropods you need to know
arachnids
insects
pentastomids
what is an acariasis
infestation with mites or ticks
pneumonyssus simicola
lung MITE of old world macaques
what is mange
skin infestation with mites
sarcoptes scabiei
causes mange in dogs, cats, rabbits, humans, and many other animals
in many states, this disease must be reported to the local health officials
demodex spp.
found in hair follicles and sebaceous glands of dogs and other animals
psoroptes cuniculi
the rabbit ear canker mite
is found in the external ear canal of rabbits
which fur mites in mice cause a significant problem in lab animals
myocoptes musculinis, Radfordia affinis, and Myobia musculi
3 parts of insect body
head
thorax
abdomen
Difference of suckling and chewing lice
suckling: have narrow heads and mouthparts that are adapted for piercing and suckling
chewing: wide heads and mouthparts that are adapted for biting and chewing
pediculosis
lice infestation
nits
eggs of lice
nymphs
recently hatched lice
polyplax serrata
typical mouse louse
what are fleas
wingless insects with well-developed legs that allow them to jump great distances
what are pentastomids
worm-like organisms lacking jointed legs
tongue worms
the anterior end of the body is broad and shaped like a tongue
where are pentastomes found i
respiratory tract, skin, and subcutaneous tissues of reptiles
what is the life cycle of fleas?
egg: pearl-like, easily fall of the host and environment is peppered with them
Larva: maggot-like
pupa: encase themselves in cocoons for metamorphosis
adult: emerge from cases 3 to 6 weeks after the eggs are laid
