Life cycle and transmission:
The adult fluke lives in the intrahepatic part of the bile duct system. They lay unembryonated eggs that take around 14 days to mature after they have been passed with the feces into an appropriate water atmosphere. Whenever maturation is complete the operculum opens and the miracidium is liberated. F. hepatica miracidium seeks an appropriate snail host. In molluscan tissue, it undergoes the usual trematode asexual reproductive procedure. The biological stage is completed in around 40 days with the discharge of the tadpolelike cercariae. The second intermediate host is not a host in the conventional logic as it does not include metacercarial development in crab, fish, or other animal tissues.
Figure: Life cycle of Fasciola hepatica
Rather, the Fasciola cercaria joins itself to an aquatic plant or crawls onto a blade of grass close to the water’s edge. On the plant surface the cercaria takes on a round shape and secretes a protective cyst wall about itself. Transformation to the mature, infective metacercaria takes around 6 months. Transmission takes place when the definitive host (i.e., cow, sheep or human) ingests the infective metacercaria. Humans become infected whenever they partake of a watercress-metacercaria salad or ingest the parasite whenever biting away the skin of contaminated water chest nut. Later than it has entered the body of the definitive host, the metacercarial cyst wall is dissolved in the duodenum. The tiny larval fluke is discharged and starts its journey by penetrating the intestinal wall to enter the peritoneal cavity. It wanders around the peritoneal cavity until it reaches the surface of the liver. It damages the liver and migrates via the hepatic tissues for around a month until it reaches at bile ducts where growth into the sexually mature adult occurs. The adult fluke starts to lay his or her eggs (i.e., Fasciola is a hermaphrodite), 2 to 3 months from the time it was ingested as a metacercaria.
Figure: Fasciola hepatica – egg
Latest technology based Biology Online Tutoring Assistance
Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Medical Parasitology help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Medical Parasitology, project ideas and tutorials. We provide email based Medical Parasitology help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Medical Parasitology. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Microbiology Homework help and assignment help services. They use their experience, as they have solved thousands of the Biology assignments, which may help you to solve your complex issues of Medical Parasitology. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.
Natural Cycles and Atmospheric Chemistry all along with the key concepts of significant depletion of ozone, Antarctic stratosphere, Acid precipitation
tutorsglobe.com locks assignment help-homework help by online operating system tutors
tutorsglobe.com chlamydia assignment help-homework help by online medical bacteriology tutors
Network Analysis and Devices tutorial all along with the key concepts of Passive Components, Voltage and current sources, Circuits, Ohm's law, Kirchhoff's law, Node and Mesh analysis, Network theorems, Linearity, Superposition Theorem, Thevenin's Theorem and Norton's theorem
www.tutorsglobe.com offers nuclear physics homework help, nuclear physics assignment help, online tutoring, online physics solutions, instant questions answers from k-12 grade level to college level by online qualified and experienced tutors help.
tutorsglobe.com types of prokaryotes assignment help-homework help by online prokaryotes tutors
tutorsglobe.com infections assignment help-homework help by online immunology tutors
Introduction to Genetics tutorial all along with the key concepts of History of Genetics, Gregor Mendel discovery, sex-linked inheritance of white eye, polymerase chain reaction and Importance of genetics
Theory and lecture notes of Post machines or tag machines all along with the key concepts of post machines or tag machines, Equivalence of TMs, PMs and Markov Algorithms, Morse code, FSM controller. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Post machines or tag machines.
tutorsglobe.com mechanism of fission assignment help-homework help by online type of nuclear reaction tutors
Theory and lecture notes of Thevenin and Norton Theorems all along with the key concepts of thevenin theorems, norton theorems, open-circuit load and short-circuit load. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Thevenin and Norton Theorems.
Halogen Derivatives of Aromatic Hydrocarbons tutorial all along with the key concepts of Classification of Halogen Derivatives, Geminal Dihalides, Vicinal Dihalides, Preparation of Halogen Derivatives, Structure-Properties of Halogen Derivatives
The electromagnetic spectrum tutorial all along with the key concepts of Range of the spectrum, Interaction of electromagnetic Radiation with Matter, Types of radiation, Nature of Light and Quantum Theory
tutorsglobe.com commensalism assignment help-homework help by online positive interactions tutors
www.tutorsglobe.com offers polymorphism homework help, assignment help, case study, writing homework help, online tutoring assistance by computer science tutors.
1952427
Questions Asked
3689
Tutors
1447977
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!