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Bio 106 Trematoda function/structure
Bio 106 Trematoda structures
21
Zoology
Undergraduate 2
10/30/2017

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Term
Phylum
Genus
Classes (2)
Definition
Platyhelminthes
Trematoda
Fasciola (sheep and cattle liver), Clonorchis (human liver)
Term
Feeding
Definition
Endoparasite (2 hosts)
Host body fluids and nutrients
Protected by syncytial tegument
Term
Reproduction
Definition
Reproduction machine
Sexual: Monoecious (sheep, human)
Asexual: Multiplies in snail
Term
Oral and Ventral Sucker
Definition
Attachment to the host's inner body wall or organs
Term
Pharynx
Definition
Pumps in blood and body fluids from host
Term
Esophagus
Definition
Pathway from pharynx to gastrovascular cavity
Term
Nerve Ganglion
Definition
Brain
Term
Gastrovascular Cavity
Definition
Digestion and distribution of nutrients throughout the body
Term
Genital Pore
Definition
Receives sperm from other trematoda and moves it to the seminal receptacle
Term
Uterus
Definition
Shelled and fertilized eggs are stored until released through genital pore
Term
Vas Deferens
Definition
Stores sperm and transports to genital pore
Term
Yolk Gland/Duct
Definition
Eggs are combined with yolk and shelled and passed to the uterus
Term
Ovary
Definition
Produces sperm
Term
Seminal Receptacle
Definition
Receives sperm from other trematoda
Term
Testes
Definition
Produce sperm
Term
Bladder
Definition
Collects metabolic wastes from flame cells
Term
Excretory Pore
Definition
Releases metabolic wastes out of body
Term
Larvae Stages (4)
Cyst Stage
Definition
Eggs
Miracidium
Sporocyte
Redia
Cecaria
Metacercaria cyst/larva
Term
Fasciola Host Cycle
Definition
Liver
Shit
Water
Water snail eats it
Poops in water vegetation
Sheep eats it
Term
Clonorchis Host Cycle
Definition
Fish cyst
Eats raw or undercooked fish
Liver
Shit
Water
Water snail eats it
Poops in water
Burrows into fish's muscle tissue
Term
Body type
Layers
Definition
Acoelomate
Triploblastic
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