Microimmunology- Helminths

10 Questions | By Kiwuafor | Last updated: Mar 21, 2022 | Total Attempts: 1095

Questions

Settings

Create your own Quiz

Questions and Answers

1.

The three main groups of helminth important to human are ________, _________ and ___________.
- A.
  
  Sarcodina, Cestoda and Sporozoa
- B.
  
  Cestoda, Digenea and Nematoda
- C.
  
  Protozoa, metazoa, and parasite worm
- D.
  
  Trematoda, platyhelminths, mastigophora
2.

One of these statements is true regarding Cestode (tapeworms):
- A.
  
  Long thin unsegmented tube-like bodies with anterior mouths and longitudinal digestive tracts.
- B.
  
  Small flat leaf-like bodies.
- C.
  
  All Cestodes (tapeworms) have separate sexes with well-developed reproductive systems.
- D.
  
  long flat ribbon-like bodies with a single anterior holdfast organ (scolex)
3.

Nematodes (roundworms) have a fluid-filled internal body cavity called ___________ which acts as a hydrostatic skeleton providing rigidity.
- A.
  
  Taeniasis
- B.
  
  Acoelomate
- C.
  
  Pseudocoelum
- D.
  
  Meazoa
4.

Helminths infection can occur by one of these process:
- A.
  
  Swallowing infective eggs or larva via the fecal-oral route.
- B.
  
  Swallowing infective larvae in the tissues of another host.
- C.
  
  Active penetration of the skin by larval stages.
- D.
  
  All of the above.
5.

Most often laboratory test perform for helminths infection is __________
- A.
  
  Wet prep
- B.
  
  Examination of the stool for ova and parasites (O&P)
- C.
  
  Eosinophil antibody by PCR
- D.
  
  Fecal occult
6.

In Helminth's life cycle, a definitive host is one in which the ____________ occurs or the _________ is present.
- A.
  
  Sexual cycle; adult
- B.
  
  Spore cycle; larva
- C.
  
  Asexual cycle; larva
- D.
  
  Binary fusion ; adult
7.

One of the folllowing is true about Taeniasis?
- A.
  
  Most Taeniasis is symptomatic
- B.
  
  Taeniasis only occurs in human and cows
- C.
  
  Taeniasis specifically refers to chronic ring worm with self mechanism to invade host immunity.
- D.
  
  Taeniasis refers specifically to infection with the adult tapeworm in the gut of the definitive host.
8.

Human acquired schistosomiasis by ________
- A.
  
  Ingesting fish infected with larval stages
- B.
  
  Ingesting vegetation with larva stages
- C.
  
  Penetration of skin by larva stages from snails
- D.
  
  Ingesting crabs infected with larva stages
9.

Trichinella does not require intermediate hosts.
- A.
  
  True
- B.
  
  False
10.

Platyhelminths are the cestoda and the nematoda.
- A.
  
  True
- B.
  
  False