Platyhelminths

Question 1

Characteristics of Helminths

Answer 1

Worm-like
Eukaryote
Multicellular
With digestive, circulatory, nervous, excretory & reproductive systems

Question 2

Male reproductive organs are in one individuals and female reproductive in other

Answer 2

Dioeocious

Question 3

One animals has both male and female reproductive organs

Answer 3

Monoecious/Hermaphroditic

Question 4

Phyla of Parasitic Helminths

Answer 4

• NEMATODES (Roundworm)
• PLATYHELMINTHS (Flatworms)
  a. Trematoda (Flukes)
  b. Cestode (Tapeworms)

Question 5

Transmission of Helminths

Answer 5

1. Skin penetration
   * Necator americanus
   * Strongyloides stercoralis
2. Bites of mosquiro vectors
   * Wuchereria bancrofti
   * Brugia malayi
3. Inhalation
   * Enterobius vermicularis
4. Fecal-soil contamination
   * Ascaris lumbricoides
   * Trichris trichuria

Question 6

Flat, leaf-shaped bodies with ventral sucker and oral sucker

Answer 6

Trematodes

Question 7

TF: Trematodes are Hermaphroditic

Answer 7

True

*Except Schistosoma

Question 8

Schistosoma Spp.

Answer 8

Blood Flukes⭐

Question 9

Disease caused by Schistosoma spp

Answer 9

Schistosomiasis

Question 10

Schistosoma mansoni

Answer 10

Intestine
Feces
Liver fibrosis
Lateral spine

Question 11

Schistosoma japonicum

Answer 11

Intestine
Feces
Liver fibrosis
Rudimentary Lateral spine ⭐

Question 12

Schistosoma haematobium

Answer 12

Urinary Bladder (Urine)
Hematuria (Egyptian hematuria) ⭐
Terminal spine

Question 13

Mode of Transmission of Schistosoma

Answer 13

Contact of cercariae (Immature form) into skin

Question 14

Treatment of Schistosomiasis

Answer 14

Praziquantel

Question 15

Paragonimus westermani

Answer 15

Lung Fluke

Question 16

Disease caused by Paragonimus westermani

Answer 16

Paragonimiasis

Question 17

Transmission of Paragonimus westermani

Answer 17

Ingestion of crustaceans hosts

Question 18

Effects of Schistosomiasis

Answer 18

• Swimmer’s Itch
• Katayama Fever
• Chronic fibrosis

Question 19

Fasciolopsis buski

Answer 19

Giant Intestinal Fluke

Question 20

Disease caused by Fasciolopsis buski (Giant Intestinal fluke)

Answer 20

Fasciolopsiasis

Question 21

Food source of Fasciolopsis buski

Answer 21

Aquatic Plant
Chestnut

Question 22

Intermediate Host of Fasciolopsis buski

Answer 22

Snail

Question 23

Largest trematode infecting humans

Answer 23

Fasciolopsis buski

Question 24

Fasciola hepatica

Answer 24

Liver Fluke
Sheep Liver Fluke

Question 25

Disease caused by Fasciola hepatica (Sheep Liver Fluke)

Answer 25

Fascioliasis

Question 26

DOC for Fasciola hepatica/Sheep liver fluke

Answer 26

Triclabendazole ⭐

Question 27

Clonorchis sinensis

Answer 27

Chinese/Oriental Fluke

Question 28

Disease caused by Clonorchis sinensis or Chinese Fluke

Answer 28

Clonorchiasis

Question 29

Transmission of Clonorchis sinensis

Answer 29

Eating raw freshwater fish/snails ⭐

Question 30

TREMATODES

Answer 30

Schistosoma Fasciola Clonorchis Fasciolopsis Paragonimus

Question 31

CESTODES

Answer 31

Taenia spp Diphyllobotrium latum Hymenolepsis nana Dipylidium caninum Echinococcus granulosus

Question 32

Cestodes Characterisitics

Answer 32

Flat Ribbon-like chain of Segements - Proglottids Lacks digestive systen - absorb nutrients from hosts

Question 33

Taenia solium

Answer 33

Pork Tapeworm

Question 34

Taenia saginata

Answer 34

Beef Tapeworm

Question 35

Disease caused by taenia spp

Answer 35

Taeniasis

Question 36

Diphyllobotrium latum

Answer 36

Broad Fish Tapeworm

Question 37

Intermediate host of Diphyllobotrium latum

Answer 37

Freshwater fish, Crustaceans

Question 38

Disease caused by Diphyllobotrium latum

Answer 38

Diphyllobothriasis - Vit B12 deficiency

Question 39

Hymenolepis nana

Answer 39

Dwarf tapeworm

Question 40

Disease caused by Hymenolopsis nana

Answer 40

Hymenolepiasis

Question 41

Smallest tapeworm/cestode to infect humans

Answer 41

Hymenolopsis nana/Dwarf tapeworm

Question 42

Dipylidium caninum

Answer 42

Dog Tapeworm

Question 43

Echinococcus granulosus

Answer 43

Hydatid worm, hyper tape-worm or dog tapeworm

Question 44

Transmission of Echinococcus granulosus

Answer 44

Ingestion of Eggs in feces

Question 45

Disease caused by E. granulosis

Answer 45

Cystic Echinococcosis / Hydatid Disease

Question 46

Site of infection of E. granulosis

Answer 46

Liver and Brain

Question 47

Cysts of Echinococcus granulosis containing watery fluid

Answer 47

Hydatid cyst

Question 48

Reaction to worm antigens that can occur if cyst ruptures

Answer 48

Anaphylactic shock

Question 49

Intermediate Host of Taenia saginata

Answer 49

Cattle