Module 1 (INTRODUCTION TO PARASITOLOGY) Flashcards
Deals primarily with parasites that affects humans and their medical significance (causes, effects, and prevention).
Medical parasitology
lives temporarily or permanently on the human body.
Parasites
organism that lives on or within and at the expense of another living organism.
PARASITE
larger organism that provides nourishment and protection to a parasite.
Example: human and animals
HOST
Types of host
DEFINITIVE/ FINAL HOST
INTERMEDIATE HOST
PARATERIC HOST
RESERVOIR
harbours the sexual/adult stage of a parasite. Humans are not always the ____
DEFINITIVE/ FINAL HOST
the parasite does not develop further to latter stage. The host serves only as a transport medium.
PARATERIC HOST
harbours the asexual/larval stage of a parasite.
INTERMEDIATE HOST
an animal infected with parasite and can be additional source of infection to human.
RESERVOIR
reservoir for Balantidum coli.
PIGS
reservoir for Bruga malayi
CATS
association between 2 organism wherein one is benefitted without causing injury to other.
COMMENSALISM
TYPES OF HOST-PARASITE RELATIONSHIP (SYMBIOSIS)
COMMENSALISM
MUTUALISM
PARASITISM
both organism are benefitted.
MUTUALISM
Symbiotic relationship where one organism (parasite)lives in or another , depending on the latter for its survival at the expense of the host.
PARASITISM
Classification of parasites
HABITAT
MODE OF LIVING
PATHOGENICITY
Classification of parasites According to habitat
Endoparasite
Ectoparasite
Classification of parasites According to MODE OF LIVING
Obligate parasite
Facultative parasite
Accidental/Incidental parasite
Permanent parasite
Temporary parasite
Spurious parasite
Opportunistic parasite
Zoonotic parasite
Classification of parasites According to Pathogenecity
Pathogenic parasite
Non pathogenic parasite
Parasite living inside the body of the host.
Endoparasite
Inhabits the intestinal or body tissues which may cause serious disease.
Endoparasite
The presence of parasite in a host is called INFECTION.
Endoparasite
Parasite living outside the host
Ectoparasite
These are arthropods that either cause disease or transmits other parasite.
Ectoparasite
Presence of parasite on a host is called INFESTATION.
Ectoparasite
Complete dependent on it’s host and cannot survive outside of it.
Obligate parasite
Most parasites are
Obligate parasites
May exist in a free-living in the environment or parasitic according to the surrounding conditions.
Facultative parasite
Affects an unusual host.
Accidental/Incidental parasite
Parasites that established itself in a host where it does not ordinarily live.
Accidental/Incidental parasite
Remains in or on the host for its entire life.
Permanent parasite
Lives in the host only for the short period of time.
Temporary parasite
They visit the host only for feeding.
Temporary parasite
Free- living organism that passes through the digestive tract without infection in the host.
Spurious parasite
Causes disease in an immune-deficient person (AIDS).
Opportunistic parasite
Parasite of the animals that can be transmitted to humans.
Zoonotic parasite
Transmits parasite from one host to another. E.g. mosquitoes.
VECTORS
Capable of causing disease
Pathogenic parasite
Commensals; not capable of causing a disease.
Non pathogenic parasite
Types of Vectors
Biologic Vector
Mechanial/Phoretic Vector
Transmits the parasite only after the latter has completed its development or reproduced inside the host.
Biologic Vector
Only transports parasite without being infected. parasites do not reproduced.
Mechanial/Phoretic Vector
Organism that causes local or systemic damage
PATHOGEN
repeated occurrence of infection
SUPER INFECTION
infection from yourself.
AUTOINFECTION
presence of infection in a host but with limited or no signs or symptoms.
CARRIER
