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Samenvatting Parasitologie: Cestoden | Lintwormen | UGent | 2025/26

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Cestoden: alle levencycli inclusief foto's om ze te herkennen op het examen. Geslaagd met 17/20.

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Cestoden

Cestoden = lintwormen
- Meest gespecialiseerde, endoparasitaire platwormen
- Geen spijsverteringsstelsel
- Ongeveer4000 soorten, vnl. darm gewervelde dieren
- Twee onderklassen

Onderklasse eucestoda




Orde pseudophyllidea




Familie Diphyllobothridae
Diphylobothrium latum
- Eindgastheer: mens, hond, kat en visetende wilde carnivoren (dunne darm)
- Tussengastheer: 1) crustacea 2) vis
- Wachtgastheren: snoek en andere roofvissen waarin de plerocercoid onverandert blijft.
1. Eieren komen met de feces in de buitenwereld waar de embryonale ontwikkeling tot
coracidium plaatsvindt

, 2. Via operculum ontsnapt het coracidium en zwemt vrij rond in het water en wordt door
crustacea (zoals cyclops en diaptomus) opgenomen waar verdere ontwikkeling tot
procercoid gebeurt.
3. Opname crustacea door vis: penetratie darm, nestelt in spieren en organen en
ontwikkelt daar tot plerocercoid (2-5cm); bij deze soorten komen ook wachtgastheren
voor zoals snoek en andere roofvissen waarin de plerocercoid onverandert blijft
4. Eindgastheer neemt rauwe of onvoldoende gekookte vis.




Orde cyclophyllidae




Familie Mesocestoididae
Mesocestoides lineatus
- Eindgastheer: wilde carnivoren (dunne darm)
- Tussengastheer: 1) Orbatide mijten of coprofage kevers met jong tetrahyridium 2)
amfibie vogels met volwassen tetrathyridium

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July 7, 2026
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2025/2026
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