4: PARASITOLOGY Flashcards
- Main focus of the Parasite-Host Relationship
Recognition of these relationship
Search for patterns of the relationships
Development of methodologies to study these patterns.
- Parasite that cannot survive outside of a host.
- Ex. Virus
OBLIGATORY PARASITE
- Parasite that is capable of existing independently of a host
- Ex. Strongyloides
FACULTATIVE PARASITE
- Parasite that is established inside of a host
- Ex. Plasmodium
ENDOPARASITE
- Parasite that is established in or on the exterior surface of a host
- Ex. Fleas
ECTOPARASITE
- Host other than the normal one that is harboring a parasite
ACCIDENTAL OR INCIDENTAL HOST
- Host in which the adult sexual phase of parasite development occurs
DEFINITIVE HOST
- Host harboring parasites that are parasitic for humans and from which humans may become infected
RESERVOIR HOST
- Host responsible for transferring a parasite from one location to another
TRANSPORT HOST/PARATENIC/PHORETIC
- Host in which the larval asexual phase of parasite development occurs
INTERMEDIATE HOST
Parasite-harboring host that is not exhibiting any clinical symptoms but can infect others
CARRIER
- Living together; the association of two living organisms, each of a different species
SYMBIOSIS
- Association of two different species of organisms that is beneficial to one at the other’s expense
PARASITISM
- Association of two different species of organisms that is beneficial to one and neutral to the other
COMMENSALISM
- Relating to commensalism; the association between two different organisms in which one benefits and has a neutral effect on the other
COMMENSAL
- Association of two different species of organisms that is beneficial to both
MUTUALISM
- Parasite that has demonstrated the ability to cause disease
PATHOGENIC
- Three common components
- Mode of transmission
- Infective stage
- Diagnostic stage
________________ may be taken against every parasite infective to humans.
- Prevention and control measures
Are designed to break the transmission cycle are crucial for successful parasite eradication.
- Preventive measures
- Eukaryote, Unicellular, with Ectoplasm and Endoplasm
GENERAL CHARACTERISTICS OF PROTOZOANS
thread-like, long whip- like structure arising from the surface of the cell.
Flagella
shorter, needle-like/hair- like structures, found all throughout the cell.
Cilia
false-feet, temporary cytoplasmic extensions.
Pseudopods / Pseudopodia
