Which of the following are characteristics of flukes?
The symmetrical body of a fluke is covered with a noncellular cuticle. Most are flattened and leaflike or ribbonlike, although some are stout and circular in cross section. Muscular suckers on the ventral (bottom) surface, hooks, and spines are used for attachment.
What are the characteristics of liver fluke?
The body of liver flukes is leaf-like and flattened. The body is covered with a tegument. They are hermaphrodites having complete sets of both male and female reproductive systems. They have simple digestive systems and primarily feed on blood.
What is a flukes habitat?
Habitat: The larvae of human blood flukes live in freshwater snails. The adults live in veins in the abdomens of mammals such as rodents, dogs, cattle, baboons, and humans. Diet: Human blood flukes feed on blood in the abdominal veins of their hosts.
What are the general characteristics of trematodes?
Morphologically, trematodes are bilaterally symmetric, vary in length from a few millimeters to several centimeters, and possess two deep suckers from which they derive their name (“body with holes”). One surrounds the oral cavity, and the other is located on the ventral surface of the worm.
What are trematodes bring out the classification of trematodes with examples?
Trematoda is a class within the phylum Platyhelminthes. It includes two groups of parasitic flatworms, known as flukes. They are internal parasites of molluscs and vertebrates. Most trematodes have a complex life cycle with at least two hosts.
What is the cause of flukes?
A liver fluke is a parasitic worm. Infections in humans usually occur after eating contaminated raw or undercooked freshwater fish or watercress. After liver flukes have been ingested, they travel from your intestines to your bile ducts in your liver where they then live and grow.
What is a human infection caused by flukes called?
What is fascioliasis? Fascioliasis is an infectious disease caused by Fasciola parasites, which are flat worms referred to as liver flukes. The adult (mature) flukes are found in the bile ducts and liver of infected people and animals, such as sheep and cattle.
How do you get rid of liver flukes?
Praziquantel is the drug of choice for Clonorchis and Opisthorchis species. It is also the first-line therapy for all the intestinal flukes and Paragonimus infection. Praziquantel causes a spastic paralysis of the worms and alteration and disintegration of the worm tegument by incompletely understood mechanisms.
What is the life cycle of a liver fluke?
Following ingestion, the young flukes migrate to the liver, through which they tunnel, causing considerable tissue damage. The infection is patent about 10-12 weeks after the metacercariae are ingested. The whole cycle takes 18-20 weeks.