What is the symmetry of a liver fluke?

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.

1. What type of symmetry does a liver fluke have?
2. Are flukes segmented?
3. Is the liver fluke Monoecious?
4. What are characteristics of flukes?
5. Do liver flukes have radial symmetry?
6. Is the liver fluke bilateral symmetry?
7. What fluke looks like?
8. Is liver fluke dioecious?
9. What color are liver flukes?
10. What is the intermediate host of liver fluke?
11. What is liver Distoma?
12. What is the secondary host of the liver fluke?
13. How big can liver flukes get?
14. What are the symptoms of liver flukes?
15. How do you get rid of liver flukes?

What type of symmetry does a liver fluke have?

Because of this, flatworms are an example of an organism that exhibits both internal and external symmetry. The reproductive organs of a liver fluke. Flatworms show bilateral symmetry both internally and externally.

Are flukes segmented?

Flatworms belong to phylum Platyhelminthes. They do not have a coelom, respiratory system or a circulatory system. Tapeworms flukes are examples of flatworms. ... Segmented worms have a true coelom, a circulatory system and a digestive system.An earthworm is a segmented worm.

Is the liver fluke Monoecious?

F. hepatica adult flukes are hermaphrodite; each contains both male and female reproductive organs.

What are characteristics of flukes?

Flukes are leaf-shaped, ranging in length from a few millimeters to 7 to 8 cm. The tegument is morphologically and physiologically complex. Flukes possess an oral sucker around the mouth and a ventral sucker or acetabulum that can be used to adhere to host tissues. A body cavity is lacking.

Do liver flukes have radial symmetry?

1. The Phylum Platyhelminthes (flatworms) includes planarians (Class Turbellaria), tapeworms (Class Cestoda), and flukes (Class Trematoda). ... Unlike, the animals in the Phylum Cnidaria which have radial symmetry, those in the Phylum Platyhelminthes have bilateral symmetry.

Is the liver fluke bilateral symmetry?

Bilateral, dorsiventral symmetry is found in the Liver fluke (Fasciola hepatica). Bilaterally symmetrical means left and right parts of the body have a similar design. Dorsiventrally means the front and backside/portion of the organism are flat.

What fluke looks like?

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.

Is liver fluke dioecious?

Aurelia is dioecious animals whereas liver fluke, tapeworm, earthworm are monoecious means male and female reproductive organs are present in the same individuals.

What color are liver flukes?

Fascioloides magna is a parasitic flatworm found within the livers of infected deer and other ruminants. Adult liver flukes are fat, oval, purple-gray in color, and up to 8 cm (3.15 in) long and 3 cm (1.2 in) wide.

What is the intermediate host of liver fluke?

Liver fluke disease (fasciolosis) is caused by the trematode parasite Fasciola hepatica. Disease can result from the migration of large numbers of immature flukes through the liver, or from the presence of adult flukes in the bile ducts, or both.

What is liver Distoma?

In humans, it infects the common bile duct and gall bladder, feeding on bile. It was discovered by British physician James McConnell at the Medical College Hospital in Calcutta (Kolkata) in 1874. The first description was given by Thomas Spencer Cobbold, who named it Distoma sinense.

What is the secondary host of the liver fluke?

Newly hatched worms, termed cercariae, leave the snail host to live inside fish, the second intermediate host. Burrowing their way through the flesh of a fish, cercariae encyst themselves inside the fish's muscle tissue.

How big can liver flukes get?

The size of the parasite ranges from 8.0 to 15.0 mm long by 1.5 to 4.0 mm wide and 1.0 mm thick (2). Humans are infected when ingesting uncooked fresh water fish infested with metacercariae. The larvae excyst in the stomach, migrate to the ampulla of Vater, ascend into the bile ducts and live there for 20-30 years.

What are the symptoms of liver flukes?

Untreated, infections may persist for up to 25–30 years, the lifespan of the parasite. Typical symptoms include indigestion, abdominal pain, diarrhea, or constipation. In severe cases, abdominal pain, nausea, and diarrhea can occur.

How do you get rid of liver flukes?

Depending on the type of fluke, drugs such as praziquantel, albendazole, or triclabendazole can eliminate them.