Introduction — Prelim Flashcards
It is the area of biology concerned with the phenomenon of dependence of one living organism on another.
Parasitology
It is concerned primarily with parasites of humans and their medical significance, as well as their importance in human communities.
Medical Parasitology
It is branch of medicine that deals with tropical diseases and other special medical problems of tropical regions.
Tropical Medicine
It is an illness, which is indigenous to or endemic in a tropical area but may also occur in sporadic or epidemic proportions in areas that are not tropical.
Tropical disease
It is the living together of unlike organisms. It may also involve protection or other advantages to one or both organisms.
Symbiosis
It exists when two symbionts are merely “traveling together”, and there is no physiological or biochemical dependence on the part of either participant.
Phoresis
It is a symbiosis in which two organisms mutually benefit from each other.
Mutualism
It is a symbiotic relationship in which two species benefits from one species benefits from the relationship without harming or benefiting the other.
Commensalism
It is a symbiotic relationship where on organism , the parasite, lives in or on another, depending on the latter for its survival and usually at the expense of the host.
Parasitism
A parasite living inside the body of a host.
Endoparasite
The presence of an endoparasite in a host is called what?
Infection
A parasite living outside the body of a host.
Ectoparasite
The presence of an ectoparasite on a host is called what?
Infestation
According to relationship between host and parasite — It remains on or in the body of the host for its entire life.
Permanent
According to relationship between host and parasite — It lives on the host only for a short period of time.
Temporary
According to relationship between host and parasite — It is a free-living organism that passes through the digestive tract without infecting the host.
Spurious
It is known as the organism that provides physical protection and nourishment to the parasite.
Hosts
6 types of Host
- Definitive Host
- Intermediate Host
- First Intermediate Host
- Second Intermediate Host
- Paratenic Host
- Reservoir Host
It is one in which the parasite attains sexual maturity.
(types of host)
Definitive Host
It harbors the asexual of larval stage of the parasite.
(types of host)
Intermediate Host
Harbors the early larval stage of parasite.
(types of host)
First Intermediate Host
Harbors the infective larval stage of parasite.
(types of host)
Second Intermediate Host
It is one in which thee parasite does not develop further to later stages. However, the parasite remains alive and is able to infect another susceptible host.
(types of host)
Paratenic Host
Any animal that harbor an infection that can be transmitted to humans, even if the animal is a normal host of the parasite.
(types of host)
Reservoir Host
Infective stage is called cyst.
Encysting protozoans