18 Questions
What is the primary mode of acquiring helminth infections?
By ingesting the larval stage or eggs in feces
What is the characteristic shape of Trematodes?
Leaf-like
Which type of helminth has a truly parasitic lifestyle, existing primarily inside the host?
Cestodes
What is the function of the cuticle in helminths?
Protection and support
How do helminths acquire nutrients?
Through both active ingestion and passive absorption
What is the characteristic of the nervous system in helminths?
Primitive and simple
Which of the following protozoa is the only human parasite that moves by cilia?
Balantidium coli
What is the primary mode of transmission for Trichomonas vaginalis?
Sexual transmission
Which of the following flagellates is an intestinal parasite causing a diarrheal illness?
Giardia lamblia
What is the name of the disease caused by Leishmania?
Leishmaniasis
In which stage is Leishmania infective and found in the sandfly vector?
Promastigote
How long can Trichomonas vaginalis trophozoites survive in urine, semen, and water?
24 hours
What is the characteristic symptom of Enterobiasis or pinworm infection?
Anal itching
What is the diagnosis method used for Enterobiasis?
Scotch Tape Method
Which of the following is NOT a symptom of Ankylostomiasis?
Nervousness
What is the characteristic feature of Shistosoma mansoni eggs?
Not described in the text
What is the body site of adult Ankylostoma duodenale?
Intestine
What is the mode of skin penetration by Shistosoma mansoni larva?
Through skin penetration
Learn about the general characteristics of multicellular parasitic worms, including their complex life cycles and the three stages of development. Understand the differences between cestodes and trematodes, and how they are primarily acquired.
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