Zoo 4234 exam Study guides, Class notes & Summaries

Pathology Alaria americana - - mature Alaria are very pathogenic and cause severe enteritis (inflammation of small intestine) - often kills host in severe infections - can be fatal in humans when accumulated in large numbers Alaria americana epidemiology - -Found in various species of Canidae in northern North America -mesocercariae pathogenic to humans *of medical importance -Acquired by eating

Hyperparasitism - Condition in which an organism is a parasite of another parasite - EX: tapeworm juvenile in flea Coelozoic parasites - a parasite living in the lumen of a hollow organ - EX: intestine Histozoic parasites - a parasite living within the tissues of a host - EX: liver

Phylum Platyhelminthes Flatworms. Parasitic. Acoelomates. Tripoblastic. Dorsoventrally flattened- greater S.A to respire by diffusion. Tegument- surficial covering of multicellular organism Parenchyma- loosely arranged mass of fibers and cells Phylum Platyhelminthes- Classes Turbellaria. Trematoda. Monogenea. Cestoidea. Digenea Subclass to class Trematoda. Parasitize all classes of vertebrates. Develops in at least two hosts. First host is usually a mollusk (snail), or very rare...

Parasitology The study of the most common mode of life on earth: parasites. Parasites are (more/less/equally) common compared to free living organisms. Way MORE Parasitology is centered on animal parasites of _________, __________and _______. Humans, domestic animals, and wildlife There are also _________ parasites Protozoan A ________ is and organism that lives in or on another organism (host) and either harms or lives at the expense of the host. Parasite. A ______ is the organisms t...

Zoo 4234 general parasitology exam 2 florida international university1) Which of the following is an epidemiological factor for human infection with Schistosoma haematobium? a) eating undercooked fish b) eating undercooked crab c) eating raw aquatic plants d) swimming in a contaminated lake e) none of the above 2) Choose the best answer that represents the chronological order of digenean development a) adult egg metacercaria sporocyst redia cercaria miracidia b) adult sporocyst egg redi...

What will an ant infected by Ophiocordyceps Unilateralis do once infected? 1. Ant will fall from tree canopy 2. Climbs again and permanently attaches its mandibles to the main vein of a leaf 3. Ant beings to grow stalk with the fruiting body and spores. Ophiocordyceps unilateralis infects ants via the _______ of the fruiting body and gets in the joint of the ants where it goes to the ________ stage Spores; yeast

Which of the following will not increase the likelihood that Leucochlrodium variae is consumed by the definitive host? a) brightly colored broodsac b) snail beneath leaf litter c) pulsating broodsac d) snail on tree branches e) none of the above

What drug was used for girl infected with Naegleria fowleri - Impavido chronic inflammation - Acute inflammation that fails to heal; occurs over longer times and is disease related

What behavioral changes occur in the 1st intermediate host in the life cycle of Leucochloridium variae? - a) snail takes cover under leaf litter b) ant does not leave its nest *c) snail remains visible on tree branches* d) ant bites down on blade of grass e) none of the above

ZOO 4234 - PARASITOLOGY EXAM 2 WITH ANSWERS Which of the following is a characteristic of Platyhelminthes? a) Most are parasitic b) Dorsoventrally flattened c) Triploblastic d) Acoelomate e) All of the above Which of the following is NOT a characteristic of Platyhelminthes? a) Triploblastic b) Parenchyma c) Pseudocoelomate d) Dorsoventrally flattened e) None of the above Which of the following is a class belonging to the Phylum Platyhelminthes? a) Turbellaria b) Monogenea c) Cest...