Cestodes (Helminths)

Description

Medical Microbiology (Parasitology) Flashcards on Cestodes (Helminths), created by gina_evans0312 on 17/04/2014.
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Flashcards by gina_evans0312, updated more than 1 year ago
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Created by gina_evans0312 over 10 years ago
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Resource summary

Question Answer
Example Species Taenina solium
Description Flat, segmented worms
Scolex Structure than contains hook and suckers but no mouth
Middle Segments Contain male and female sex organs
Distal segments Contain eggs, which cause segment to be shed
Life Cycle- Consumption Human consumed infected meat and scolex of cysterci attaches it to wall of S.I
Life Cycle- Cysticercosis Where eggs enter the deep tissues and cause a variety of symptoms
Life Cycle- Excretion Segments containing eggs are shed into feces and excreted
Life Cycle- Cattle/Pigs Eggs in soil are taken up by cattle/pigs, and lose outer shell
Life Cycle- Pig Intestine Eggs hatch and hooks latch onto intestine
Life Cycle- Pig Muscle Worms migrate into muscle and form cysterci
Symptoms Usually non-specific and abdominal
Symptoms (Cysicercosis) Vary greatly, eye damage, cysterci calcification in muscle/brain = seizures and paralysis
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