吸蟲 Flashcards

1
Q

吸蟲介紹?

A

長橢圓形,有卵蓋
兩個吸盤(口、腹)
兩側各一腸道不相接,無肛門
具頭部神經環,衍生6縱走神經
透過焰細胞或皮膚排泄
雌雄同體,自體受精

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2
Q

吸蟲共同特徵?

A

1.所有FH都是人
2.所有1IMH都是水螺
3.蟲卵排出在陸地,沒水會死
4.1IMH:纖毛-孢狀-雷氏-尾動
5.2IMH:囊狀(具感染性)
血吸蟲無卵蓋,只有水螺一個中間宿主

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3
Q

腸吸蟲有哪些?

A

Fasciolopsis buski薑片蟲
Metagonimus yokogawai橫川異型
Herterophyes herterophyes異型異型
Echinostoma sp.棘口吸蟲屬
Gastrodiscoides hominis人雙口吸蟲

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4
Q

薑片蟲介紹?

A

腸道內最大隻的吸蟲
RH是豬,2IMH是淡水植物
造成腸道機械性破壞、蛋白質流失
治療:Praziquantel、手術

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5
Q

橫川/異形異形吸蟲介紹?

A

小型吸蟲,3~4mm
RH是水鳥、貓狗,2IMH是淡水魚
蟲卵造成阻塞(大腦脊髓:癲癇、神經功能缺損,心臟:心臟功能不全)

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6
Q

棘口吸蟲屬介紹?

A

中型腸吸蟲,口吸盤周圍有棘
RH是兩棲、水鳥、哺乳類,2IMH是螺、蝌、淡水魚
造成腸道發炎、潰瘍、腹瀉

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7
Q

人雙口吸蟲介紹?

A

流行於阿薩姆,梨子狀,腹吸盤很大
RH是鼷鹿,2IMH是水生蔬菜

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8
Q

衞氏肺吸蟲Paragonimus westermani介紹?

A

無RH,2IMH是淡水蝦蟹類
吃到蟲卵在十二指腸脫囊,突破小腸壁進到腹腔,移行到肺變成蟲
在肺產卵後隨痰排出或吞下
在肺細胞形成纖維化囊,周圍是結核性囊腫
急性:腹部症狀,慢性:胸腔症狀
異位寄生:跑到大腦或橫紋肌

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9
Q

肝吸蟲的種類(小、中、大)?

A

1.Dicrocoelium dendriticum槍狀
2.Fasciola:羊、巨大
3.Opisthorchis:中華、貓、泰國

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