Lab 1 Parasitology Flashcards
First 10 cards about lec 1
Type of parasite ?
Portozoa
Helminthes in addition to the arthropods
Act as vectors of various pathogens ?
Arthropods
Numerous types of vectors ?
Mechanical vectors ex : house fly, cockroach
Biological vectors: sand fly, mosquitos
Q1:Parasite classified as:
Q2: They inhabitat the surface of the body of the host without penetrating into the tissue is called as ( define)
Q3: They live within the body of the host is called as
Q4: mention types of the endoparasite ? With explain
1/- ectoparasite
- endoprasite
2/ ectoparasite
3/ endoparasite
4/ - obligate : They can`t exist without a parasitic life in the host, e.g ( plasmodium species)
- facultative : They can live a parasitic or free-living when the opportunity arise s(e.g.,Strongyloides sterocoralis).
- accidental : They infect an unusual host (e.g.,Echinococccus granulosus).
1- Types of the host ?
2- MCQ for all type
A - replicate sexually and may be human or non human ?
B- harbours the parasites and serve as an important source of infection to other susceptible hosts ?
C- parasite lives but it cannot
develop further and not essential for its life cycle ? It function as a transport or carrier host.
D- undergoes asexual multiplication, are essential for the completion of life cycle for some parasites ?
- note: Intermediate hosts are essential for the completion of life cycle for some parasites. Some parasites require two intermediate hosts to complete their different larval stages.
Definitive (final host) , Intermediate host
Reservoir host, Paratenic host
2- Answer is :
A- Definitive host
B- Reservoir host
C- paratenic host
D- intermediate host
Host parasite relationship
Types or terminology betwwen host & prasite
Define : 1- symbiosis
2- Commensalism
3- Parasitism
OR MCQ
Symbiosis:It is the close association between the host and the parasite. Both are interdependent upon each other that one cannot live without the help of the other. None of them suffer any harm from each other.
2- Commensalism :It is an association in which the parasite only drives the benefit without causing any injury to the host.A commensal is capable of living an independent life.
3- Parasitism:It is an association in which the parasite derives benefit from the host and always causes some injury to the host.The host gets no benefit in return.
Topic : transmission of parasite
First axis :concerning source of infection .. MCQ
1- reservoir for a majority of parasitic infections (e.g.,amoebiasis,enterobiasis)
2- called as zoonoses (e.g, toxoplasmosis from cata )
3- usually an arthropod that transmits the infection from one infected human being to another. can be biological or mechanical
4- Contaminated with feces of human containing eggs (e.g., Ascaris species)
5- water contaminated with human feces containing cysts, can acts as source of infection. This cysts called ..
6- Raw or under cooked meat :Raw beef containing the ……. an example where undercooked meat acts as source of infection
Cysticercus bovis
1- Man (human)
2- Animal
3- vectors
4- contaminated soil and water
5- Entamoeba histolytica
6- larvae of Cysticercus bovis
Topic : transmission of infection
Second axis : concerninig of mode of transmission ….
Q/ Numerous
• Oral or feco-oral route.
• Penetration of the skin and mucous membranes.
• Sexual contact.
• Bite of vectors.
• Vertical transmission: mother to fetus
• Blood transfusion.
• Autoinfection
Life cycle of the parasite ?
Numerous and explain
Direct (simple life cycle) : when a praasite requires one host to complete it’s deveplopment.
Indirect (complex life cycle) : when a parasite requires two hosts to complete it’s development.
1- Micro or Macro scopically diagnosis :
2- Culture methode :
3- Immunodiagnostic methods antibody and antigen detection tests:
4- Molecular methode :
5- Imaging techniques :
Ans/ 1- to examination samples
of or specimens stool,urine,sputum,blood
2- NNN Media for leishmania
3- ELISA
4- PCR *
5- X-ray, USG, CT
