What are the stages of a fluke life cycle?
Life Cycle: The adult flukes deposit fully developed eggs that are passed in the feces . After ingestion by a suitable snail (first intermediate host) , the eggs release miracidia , which undergo in the snail several developmental stages (sporocysts , rediae , cercariae ).
Which one of the following is an actively swimming free living and non feeding stage of liver fluke?
So, the correct answer is ‘Cercaria’.
Which is free swimming stage in liver fluke?
Miracidium
The ”Miracidium” is the free-swimming larval stage of the Liver fluke. It is released from the hatched eggs and enters the secondary host snail’s body.
What are the larval stages of Fasciola?
Due to the presence of several larval stages, the life history of Fasciola hepatica is very much complicated….Larval Stages:
- Miracidium Larva: It is the first larval stage in the life cycle of Fasciola hepatica.
- Sporocyst Larva:
- Redia Larva:
- Cercaria Larva:
- Metacercaria:
What is the infective stage of liver fluke?
The cercariae migrate onto wet herbage, encysting as metacercariae, the highly resilient infective stage of the liver fluke. Following ingestion, the young flukes migrate to the liver, through which they tunnel, causing considerable tissue damage.
How many stages of development does blood flukes have?
five different developmental stages
Parasite morphology: Blood flukes form five different developmental stages: eggs, miracidia, sporocysts, cercariae and adult worms.
Which of the following is the non feeding larval stage of Fasciola hepatica or liver fluke?
The free-living miracidium and metacercarium stages are non-feeding.
Which of the following has free living lava?
So, the correct answer is ‘Sponges’.
Is Redia free swimming?
The hatchling is called a miracidium, a free-swimming, ciliated larva. Miracidia will then grow and develop within the intermediate host into a sac-like structure known as a sporocyst or into rediae, either of which may give rise to free-swimming, motile cercariae larvae.
Which of the following is a free swimming larva of Fasciola sp?
Miracidium larva is an elongated, free-swimming stage.
Which larval stage of Fasciola hepatica does not produce several larvae?
Correct answer:(d) Cercaria.
What is the first stage of larva of Fasciola?
Miracidium larva
[Miracidium larva comes out from the egg shell of the fertilized egg by eroding tlie operculum wit11 the help of proteolytic enzyme. It is the first larval stage in the life cycle of F. hepatica. It is a free swimming stage in fresh water.