29 Questions
Where are the eggs of tapeworms usually found?
Gravid segments
What is the mode of nutrition for tapeworms?
Nutrition absorbed through body wall
Which system in tapeworms is responsible for excretion?
Excretory system with flame cells
What is a common feature of the reproductive system of cestodes?
Having multiple testes and a bilobed ovary
Where do the ducts of testes and ovary open in cestodes?
Genital pore
Which larval stage of cestodes is considered infective for most species?
Cystic larval stage
What is the main difference between Schistosoma eggs and eggs of other trematodes?
Schistosoma eggs are operculated, unlike other trematode eggs.
Which larval stage of trematodes is characterized by having a cylindrical larva with a collar structure?
Redia
What is the final larval stage inside the snail for Schistosoma?
Cercaria
Which host is needed for the asexual cycle of trematodes to begin in soft tissues?
Intermediate host (snail)
The lack of a circulatory system is a characteristic feature of:
Trematodes
Which stage serves as the infective stage for schistosomes?
Cercaria
What is the life cycle stage of cestodes that is responsible for causing significant morbidity and mortality among humans in underdeveloped countries?
Cystic larva
Why are cestode infections emerging as an important cause of diseases in industrialized countries?
Mainly in rural areas and among immigrants
What percentage of global disability-adjusted life years (DALYs) lost do cestode zoonoses account for among all neglected zoonotic diseases?
Over 75%
What country was the 68-year-old man from when he moved to the United States?
China
What did the physician detect during the routine physical examination of the 68-year-old man?
Enlarged liver
What radiological study was ordered after the physician detected a mass in the right upper quadrant of the abdomen?
Ultrasound of the liver
What is the main function of protozoa?
Reproduction, digestion, excretion, respiration, etc.
What was found in the stool examination of the 34-year-old man with fever and crampy abdominal pain?
Amoeboid trophozoites
Which resource would be most helpful for detailed information on diagnostic parasitology?
Paniker's Textbook of Medical Parasitology, 8th ed.
What is characteristic of the Plasmodium falciparum parasite?
Presence in blood causing malaria
What would be an essential focus area when studying Medical Protozoology?
Life cycle of protozoa
What is the function of the ectoplasm in protozoa?
Serves as an organ for locomotion and food engulfment
What is the main function of the endoplasm in protozoa?
Contains the nucleus, golgi bodies, and endoplasmic reticulum
How many nuclei can some species of protozoa have in a single cell?
100
What does the nucleus of protozoa contain?
Nucleoli or a central karyosome
Which part of protozoa is responsible for nutrition and reproduction?
Endoplasm
What is the significance of the nucleus in protozoa?
Regulates cell activity & reproduction
Learn about the characteristics of trematodes, including their reproductive system and feeding habits, as well as the life cycle involving snails, definitive hosts (humans), and reservoir hosts (animals).
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