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Human Parasitic Helminthes 人 體 寄 生 蠕 蟲 PowerPoint PPT Presentation


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Platyhelminthes 扁平蠕蟲. Nemathelminthes 線形蠕蟲. NEMATODA (Roundworms) 線 蟲. TREMATODA (Flukes) 吸 蟲. CESTODA (Tapeworms) 絛 蟲. Human Parasitic Helminthes 人 體 寄 生 蠕 蟲. Parasitic Helminths 寄生蠕蟲. Platyhelminthes 扁平蠕蟲. TREMATODA (Flukes) 吸 蟲. CESTODA (Tapeworms) 絛 蟲.

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Human Parasitic Helminthes 人 體 寄 生 蠕 蟲

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Human parasitic helminthes

Platyhelminthes 扁平蠕蟲

Nemathelminthes 線形蠕蟲

NEMATODA

(Roundworms) 線蟲

TREMATODA

(Flukes) 吸蟲

CESTODA

(Tapeworms) 絛蟲

Human Parasitic Helminthes

人體寄生蠕蟲


Human parasitic helminthes

Parasitic Helminths寄生蠕蟲

Platyhelminthes 扁平蠕蟲

TREMATODA

(Flukes) 吸蟲

CESTODA

(Tapeworms) 絛蟲

Nemathelminthes 線形蠕蟲

NEMATODA

(Roundworms) 線蟲


Human parasitic helminthes

1 cm

1.H. heterophyes

異形異形吸蟲

2.O. felineus

貓肝吸蟲

3.C. sinensis

中華肝吸蟲

4.P. westermani

衛氏肺吸蟲

5.F. hepatica

牛羊肝吸蟲

6.F. buski

薑片蟲

5

2

1

3

4

6

Phylum Platyhelminthes 扁形蟲門

Class Trematoda 吸蟲綱

Subclass Digenea 複殖目


Human parasitic helminthes

附著器官

均具口吸盤及腹吸盤

扁平長形呈葉狀,不分節。長度由2mm至80mm。

表皮有棘、結節或塉狀突起

形態

口吸盤

體腔

無體腔

腹吸盤

內部構造

具神經系統、排泄系統、消化系統及

雌雄生殖系統 (Monoecious)-血吸蟲除外

子宮

睪丸

腸道

卵腺

卵巢

複殖目吸蟲形態特徵及基本構造


Human parasitic helminthes

口吸盤

腹吸盤

口吸盤

腸道

Cephalic ganglia

頭神經節

Ventral nerve truck

腹神經斡

Lateral nerve trunk

側神經斡

Dorsal nerve trunk

背神經斡

排泄小管

焰細胞

焰細胞

排泄小管

排泄囊/排泄孔

吸蟲消化系統

食道及咽

盲腸

吸蟲排泄系統

吸蟲神經系統


Human parasitic helminthes

口吸盤 Oral sucker

總生殖室

Common gebital atrium

生殖孔 Genital pore

Ovary 子宮

陰莖 Cirrus

陰莖囊 Cirrus sac

Egg卵

前列腺 Prosate gland

儲精囊 Seminal vesicle

輸精管 vas deferens

Mehlis gland卵殼腺

卵黃腺 Vitelline gland

Ootype呈卵腔

卵黃管 Vitelline duct

Vitelline duct 卵黃管

Seminal receptable 受精囊

輸出管 vas efferentia

Laurer’s gland 勞氏管

Ovary 卵巢

睪丸 testis

吸蟲生殖系統—雌雄同體 (Monoecious)


Human parasitic helminthes

口吸盤

腹吸盤

子宮

睪丸

腸道

卵腺

卵巢


Human parasitic helminthes

OR

AND

Self fertilization

自體受精

Cross-fertilization

異體受精

卵蓋

Reproduction & Life Cycle

● Sexual Generation有性生殖世代

Production of eggs by adults in final host 成蟲在終宿主產卵

All flukes are oviparous (lay eggs)

Eggs of all flukes, except for Schistosoma spp. are

operculated.

所有吸蟲之蟲卵均具卵蓋(除血吸蟲外)

● Asexual Generation無性生殖世代

Multiplication of sporocyst or redia in 1st I.H.

雷氏幼蟲或胞子幼蟲(血吸蟲)在中間宿主繁殖


Human parasitic helminthes

有性

生殖期

診斷期

感染期

無性

生殖期

General Trematode Life Cycle

Final Host 終宿主

Mammals

Human

Adult worm

成蟲

Egg

蟲卵

進入水中蜉化或被螺類吞食

囊狀幼蟲

1st Intermediate Host

第一中間宿主

淡水螺類

2nd Intermediate Host

第二中間宿主

甲殼類 Crustacean

水生植物 Water plants

魚類 Fishes

昆蟲 Insects

Miracidium

纖毛幼蟲

Cercaria

尾動幼蟲

Sporocyst

胞子幼蟲

Redia

雷氏幼蟲


Human parasitic helminthes

Trematodes 吸蟲

Intestinal Flukes 腸吸蟲

Fasciolopesis buski 布氏薑片蟲

Metagonimus yokogawi 橫川異形吸蟲

Heterophyes heterophyes 異形異形吸蟲

Echinostoma ispp. 棘口吸蟲

Gastrodiscoides hominis 人雙口吸蟲

Lung Flukes 肺吸蟲

Paragonimus westermani衛氏肺吸蟲症

Liver Flukes 腸吸蟲

Clonorchis sinensis 中華肝吸蟲

Opisthorchis felineus 貓肝吸蟲

Opisthorchis viverrini 泰國肝吸蟲

Fasciola hepatica 牛羊肝吸蟲

Dicrocoelium dentriticum 槍狀肝吸蟲

Blood Flukes 腸吸蟲

Schistosoma mansoni 曼森血吸蟲

Schistosoma japonicum 日本血吸蟲

Schistosoma haematobium 埃及血吸蟲

Schistosoma mekongi 湄公血吸蟲

Schistosoma intercalatum 間插血吸蟲

胰吸蟲 Eurytrema spp.


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