29 Questions
Which of the following is NOT a family of flukes mentioned in the text?
Gorgoderoidea
Which fluke inhabits the pancreas?
Eurytrema pancreaticum
Which fluke is the only clinically relevant species in the Philippines?
Paragonimus westermani
Which of the following is a characteristic of all flukes mentioned in the text?
They require two intermediate hosts
Which stage of the trematode is infective to the 1st intermediate host?
Miracidium
What happens to the miracidium if it cannot find a host within 8-12 hours?
It dies
Which stage of the trematode is responsible for asexual reproduction to form more sporocysts or move to the next stage redia?
Sporocyst
Which type of cercaria has a big, round to oval head and no stylet in the oral sucker?
Gymnocephalus
Which structure is commonly mistaken as the intestine in a trematode?
Uterus
What is the function of the vitellaria in a trematode?
Produce shell material for the eggs
Which drug is the recommended treatment for all trematode infections?
Praziquantel
Which developmental stage of a trematode is released in water from the egg or inside the first intermediate host?
Miracidium
Which class do Trematodes belong to?
Class Trematoda
What are the two orders of Trematodes mentioned in the text?
Order Diplostomida and Order Plagiorchiida
Which family is known as the Blood Flukes?
Family Schistosomatidae
Which family is known as the Intestinal Fluke?
Family Echinostomatidae
Which stage does the Redia mature into in most trematodes?
Cercaria
Which stage does the Cercaria encyst to become in the tissue of the 2nd intermediate host?
Metacercaria
What is the infective stage of blood flukes called?
Cercaria
What is the final destination of the adult worms in blood flukes?
Liver
Which type of cercaria has fins all over its body?
Pleurolophocercous
Which type of cercaria has a big round head?
Gymnocephalus
Which larval stage of the trematode sheds its tail after penetrating the skin of a human?
Schistosomule
Which stage of the schistosomule's life cycle occurs after it penetrates the human skin?
Heart-lung migration
How does a human get infected with schistosomiasis?
By coming into contact with contaminated water
Where does the schistosomule go after it reaches the human circulation?
Liver
What happens to the schistosomule after it becomes an adult worm?
It lays eggs
Where does the adult worm of schistosomiasis reside in the human body?
Blood vessels
In which region is schistosomiasis most commonly endemic in the Philippines?
Visayas
Test your knowledge on the life cycle of trematodes in this quiz! Learn about the maturation stages of the 2nd Generation, Redia, and Cercaria, and discover the unique characteristics of schistosomes. Don't miss out on this opportunity to deepen your understanding of trematodes.
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