Helminths

Question 1

What are the 2 phyla

Answer 1

Platy helminths and nematodes

Question 2

What are cestodes also called?

Answer 2

Tapeworms

Question 3

What are trematode also called?

Answer 3

Flukes

Question 4

What are nematodes also called?

Answer 4

Roundworms

Question 5

What’s a chain of proglottids called?

Answer 5

Strobila

Question 6

Name 3 species of cestodes

Answer 6

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

Question 7

Pre patent period of hookworm?

Answer 7

4-7 weeks

Question 8

Ppp of ascaria roundworm

Answer 8

65 days

Question 9

Ppp of whipworm trichuris

Answer 9

90 days

Question 10

Adult location of hookworm

Answer 10

SI

Question 11

Adult location of ascaris

Answer 11

SI

Question 12

Adult location of trichuris

Answer 12

Large intestine

Question 13

Transmission route of hookworm

Answer 13

Oral/ skin (L3)

Question 14

Transmission route of ascaris

Answer 14

Oral (L2)

Question 15

Transmission route of trichuris

Answer 15

Oral (L1)

Question 16

Main treatment for STH

Answer 16

Albendazole / Memebdazole

Question 17

Treatment of strongyloides

Answer 17

Ivermectin, mebendazole

Question 18

How many eggs are laid by trichuris

Answer 18

2000-10,000 eggs a day

Question 19

Diagnosis of trichuris

Answer 19

Eggs in faeces

Colonoscopy

Question 20

Life cycle of trichuris

Answer 20

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

Question 21

Is trichuris lifecycle direct or indirect

Answer 21

Direct

Question 22

Disease of whipworm trichuris

Answer 22

Chrons
Anaemia
Rectal prolapse

Question 23

Species of hookworm

Answer 23

Ancylastoma duodenle

Necator Americanus

Question 24

Lifecycle of hookworm

Answer 24

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

Question 25

What disease is caused by ascaris

Answer 25

``` 1. Migratory Eosionphilia Pneumonitis Liver enlargement 2. Intestnal Perforation of bowel 3.pancreatic ```

Question 26

What order doe taenidae and hymenolepidea come under?

Answer 26

Cyclophyllidea

Question 27

4 main trematode diseases

Answer 27

Fasciolosis Paragonimiasis Opisthorchiasis Clonorchiasis

Question 28

Infectious agent of opistothorchiasis

Answer 28

Opisthorchis viverini

Question 29

How do we get opistothorchiasis

Answer 29

Consumption of fish

Question 30

How do we get Paragonimiasis

Answer 30

Consumption of crustaceans

Question 31

How do we get fasciolosis

Answer 31

Consumption of infected veg

Question 32

How do we get Clonorchiasis

Answer 32

Consumption of fish