Arthropods Flashcards
1
Q
what are ectoparasites?
A
parasites established in or on the exterior surface of it’s host
2
Q
what organisms are considered ectoparasites and why
A
- ticks, fleas, lice, mites, mosquitos att or burrow to the skin and remain there for long periods of time
- mosquitos are blood sucking arthropods rely on small blood meals to survive
3
Q
what is Pediculus humanus?
A
lice!!!!!!
4
Q
pediculus humanus capitus vs humanus?
A
capitus = head humanus = body
5
Q
what in pediculus humanus feeds on blood to live?
A
the nymph and adult
6
Q
what does pediculus humanus cause?
A
pediculosis
- tickeling, itching, irritability
- secondary bacteria infection may be a complication
7
Q
what causes Lymes disease?
A
Lymes disease caused by Ixodes scapularis, Ixodes pacificus, Boriella burgdorferi
8
Q
what is there to know about the structural orientation of Arthropods?
A
- bilaterally symmetrical
- exoskeleton made of chitin
- segmented bodies - segmented fusion (tagmosis)
- ecdysis (arthropods periodically shed cuticle to grow)
9
Q
what are organisms considered arthropods?
A
-insects, millipedes, centipedes, spyders, ticks, mites, scorpions, crustacea, horshoe crabs, sea spyders, trilobites
