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Trop939 > Helminths > Flashcards

Helminths Flashcards

1
Q

What are the 2 phyla

A

Platy helminths and nematodes

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2
Q

What are cestodes also called?

A

Tapeworms

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3
Q

What are trematode also called?

A

Flukes

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4
Q

What are nematodes also called?

A

Roundworms

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5
Q

What’s a chain of proglottids called?

A

Strobila

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6
Q

Name 3 species of cestodes

A 
Taenia solium (pork tapeworm)
Taenia saginata (beef tapeworm)
Diphyllobothrium Latum (Broad fish tapeworm)
Hymenolepis nana (dwarf tapeworm)
Echinococcus spp (hyatid disease tapeworms)
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7
Q

Pre patent period of hookworm?

A

4-7 weeks

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8
Q

Ppp of ascaria roundworm

A

65 days

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9
Q

Ppp of whipworm trichuris

A

90 days

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10
Q

Adult location of hookworm

A

SI

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11
Q

Adult location of ascaris

A

SI

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12
Q

Adult location of trichuris

A

Large intestine

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13
Q

Transmission route of hookworm

A

Oral/ skin (L3)

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14
Q

Transmission route of ascaris

A

Oral (L2)

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15
Q

Transmission route of trichuris

A

Oral (L1)

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16
Q

Main treatment for STH

A

Albendazole / Memebdazole

17
Q

Treatment of strongyloides

A

Ivermectin, mebendazole

18
Q

How many eggs are laid by trichuris

A

2000-10,000 eggs a day

19
Q

Diagnosis of trichuris

A

Eggs in faeces

Colonoscopy

20
Q

Life cycle of trichuris

A
  1. embryonated egg ingested
  2. Larvae hatch in SI
  3. Adults embed in colon
  4. Unembroyanted and u infectious egg passed in stool
  5. embryo develops
  6. Embryonated egg developed and is ingested
21
Q

Is trichuris lifecycle direct or indirect

A

Direct

22
Q

Disease of whipworm trichuris

A

Chrons
Anaemia
Rectal prolapse

23
Q

Species of hookworm

A

Ancylastoma duodenle

Necator Americanus

24
Q

Lifecycle of hookworm

A
  1. Eggs passed in larvae
  2. Rabiform larvae hatch and develop in soil
  3. Filaform larvae form in the grass
  4. Filaform larvae will penetrate feet
  5. Larvae enter blood stream and heart
  6. Larvae migrate up trachea and are swallowed
  7. Adults mature in the SI
25
Q

What disease is caused by ascaris

A 
1. Migratory
Eosionphilia
Pneumonitis
Liver enlargement
2. Intestnal
Perforation of bowel
3.pancreatic
26
Q

What order doe taenidae and hymenolepidea come under?

A

Cyclophyllidea

27
Q

4 main trematode diseases

A

Fasciolosis
Paragonimiasis
Opisthorchiasis
Clonorchiasis

28
Q

Infectious agent of opistothorchiasis

A

Opisthorchis viverini

29
Q

How do we get opistothorchiasis

A

Consumption of fish

30
Q

How do we get Paragonimiasis

A

Consumption of crustaceans

31
Q

How do we get fasciolosis

A

Consumption of infected veg

32
Q

How do we get Clonorchiasis

A

Consumption of fish

Trop939 (9 decks)

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