Parasitology Overview

Question 1

Symbiosis

Answer 1

Living together of unlike organisms which may involve protection or other advantage to one or both organs

Question 2

Commensalism

Answer 2

Two species live together and one species benefits from the relationship without harming or benefitting the other

Question 3

Mutualism

Answer 3

Two organisms benefit from each otherP

Question 4

Parasitism

Answer 4

Relationship where one organism live in or on another, depending on the latter for its survival and usually at the expense of the host

Question 5

Endoparasite

Answer 5

Parasite living inside the body of a host (Infection)

Question 6

Ectoparasite

Answer 6

Parasite living outside the body (Infestation)

Question 7

Obligate parasite

Answer 7

Parasite that needs a host at some stage of their life cycle

Question 8

Facultative Parasite

Answer 8

May exist in a free-living state

Question 9

Accidental/Incidental Parsite

Answer 9

Establishes itself within its uncommon host

Question 10

Permanent Parsite

Answer 10

Remain on or in the body of the host for its entire life

Question 11

Temporary Parasite

Answer 11

Lives on the host only for a short period of time

Question 12

Spurious/Caprozoic

Answer 12

Passes the digestive tract w/o infecting the host

Question 13

Definitive Host

Answer 13

Where the parasite attains sexcual maturity

Question 14

Intermediate host

Answer 14

Harbors the asexual or larval stage of the parasite

Question 15

Paratenic host

Answer 15

Parasite does not develop further to later stages. Remains alive and can infect another susceptible host

Question 16

Reservoir Host

Answer 16

Harbor the parasite other than definitive, intermediate, and paratenic hosts; allows the parasite’s life cycle to continue and become additional sources of human infection

Question 17

Incidental host

Answer 17

Harbors a parasite where it is not its usual host

Question 18

Biologic Vector

Answer 18

Transmits the parasite only after it has completed its development within the host

Question 19

Mechanical Vector

Answer 19

Only transports the parasite

Question 20

Incubation Period

Answer 20

Between infection and evidence of symptoms

Question 21

Pre-patent period

Answer 21

Between infection or acquisition of the parasite and evidence or demonstration of infection

Question 22

Autoinfection

Answer 22

Results when an infected individual becomes hi own direct source of infectionS

Question 23

Superinfection

Answer 23

Happens when the already infected individual is further infected with the same species leading to a a massive infection of the parasite