01:146:328 Lecture Notes - Lecture 4: Digenea, Trematoda, Polyembryony

• School: Rutgers University
• Department: Cell Biology and Neuroscience
• Course: 01:146:328
• Professor: A.Keating

Document Summary

1: tree of life, phylum platyhelminthes, general life cycle, egg, miracidium, sporocyst, redia, effect of larvae on snail host, cercaria, metacercaria, polyembryony, trematodes. Draw the tree of life and indicate the domains, major groups within the eukarya, and identify prokaryotes and eukaryotes: morphology, tegument, habitats in the host. Which domain includes the traditional parasites: protista and animalia. In which phylum are the trematodes classified: platyhelminthes. What is the common name of the platyhelminthes? flatworms. How many hosts are involved in the life cycle of a digenetic trematode: 2. What ih is always involved in the life cycle: snail. What is the common name of digenetic trematodes? flukes. Draw a generalized trematode life cycle: dh (mature adult worms) -> parasite eggs in exterior environment (water)/hatch -> miracidium -> swims and penetrates snail (ih) -> sporacyst -> redia -> circaria exits snail/metacercaria -> dh. Inside human -> water -> inside snail -> inside human.