definition of terms Flashcards
(31 cards)
1
Q
parasitology
A
- study of organisms
- lives within the body of another organism for survival
2
Q
host-parasite relationships
A
- symbiosis
- mutualism
- commensalism
- parasitism
3
Q
symbiosis
A
- living together
- two living organisms
- different species
4
Q
mutualism
A
- two different species of organisms
- beneficial to both
5
Q
commensalism
A
- two organisms
- one benefits and has neutral effect on the other
6
Q
parasitism
A
- two different species
- beneficial to one at the other’ expense
7
Q
definitive host
A
- harbors the adult
- sexual stage
8
Q
intermediate host
A
harbors the larval
- asexual stage
9
Q
reservoir
A
- allows parasite cycle to continue
10
Q
paratenic
A
harbors the parasite in its arrested stage
11
Q
endoparasite
A
- lives within host
12
Q
ectoparasite
A
- lives outside host
- found in the surface
13
Q
pathogenic
A
- cause disease
- inflict injury to man
14
Q
non pathogenic / commensal
A
- does not cause disease
15
Q
facultative
A
- can live with or without host
16
Q
obligatory
A
- cannot survive without host
17
Q
zoonotic
A
- animal parasite / non-human parasite that can infect man
18
Q
erratic
A
- fixed
- unusual organ
19
Q
incidental
A
- establish itself in host where it does not usually ordinary live
20
Q
permanent
A
- found within host from early life to maturity
21
Q
transitory
A
- larval stage develops
- adult life is free living
22
Q
periodic
A
- larval stage develops in host different from adult
23
Q
intermittent
A
- simply visits host during feeding time
24
Q
infection
A
- invasion endoparasite
25
infestation
- invasion by ectoparasite
26
infective stage
- morphological form
27
diagnostic stage
- detected by laboratory retrieval methods
28
carrier
- harboring parasite without showing signs and symptoms-parasite lives in host without causing evident harm
29
epidemic
- sudden increae
30
endemic
- steady, moderate level
31
pandemic
- disseminated over an extensive area of the world
