Lecture 12 - Helmiths Flashcards Preview

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Flashcards in Lecture 12 - Helmiths Deck (53):
1

What are the 3 main types of helminths?

Nematodes (round worms), Cestodes (tapeworms), Trematodes (flukes)

2

What are the physical characteristics of nematodes

Circular

3

What are the physical characteristics of cestodes

Flat and segmented

4

What are the physical characteristics of trematodes

Flat and unsugmented

5

What are the types of intestinal nematodes?

Enterobius vermicularis
Ascaris lumbricoides
Trichuris trichiura
Intestinal hookworm
Ancyclostoma brasiliense
Strongyloides stercoralis
Anisakis spp.

6

Common name for enterobius vermicularis

CHILD BUTT WORM

7

Where does E. vermicularis live?

In da secum

8

Why is E. vermicularis usually not a large problem

Eggs implanted on the anus are usually washed away when bathing

9

What is the most common intestinal nematode?

E. vermicularis

10

What is the size of Ascaris lumbricoides

THEY ARE HUGE

11

What causes ascaris lumbricoides to move out the nose/mouth and/or anus?

Fever and anethestics

12

Why do we not see egg excretion for ascaris lumbricoides?

Only males infest us

13

What can be a major concern for those infected with ascaris lumbricoides?

Migration to bile duct, pancreas or appendix causing obstruction

14

What is the more common name for trichuris trichiura?

Whipworm

15

What is caused by whipworm

Rectal prolapse?

16

Symptoms of trichuris dysentery syndrome?

Anemia, rectal prolapse, finger clubbing and growth stunting

17

What are the two types of intestinal hookworms?

Ancylostoma duodenale and Necater americanus

18

How are intestinal hookworms acquired?

Through invasion through the skin. Usually feet (barefoot)

19

How do hookworms go form your foot to your intestine?

Skin -> lungs -> coughs up -> ingested

20

How are hookworms diagnosed?

By blood testing for anemia

21

What do hookworms do in the intestine?

Attach to intestinal villi and suck ur fuggin blood

22

What is the only worm that can reproduce inside your body?

Strongyloides stercoralis

23

How is Strongyloides stercoralis contracted?

Through barefoot intrustion

24

What are the types of tissue nematodes?

Trichinella spiralis
Subcutaneous filariasis
Dracunculus medinesis

25

How is trichinella spiralis contracted?

From undercooked meat

26

What does trichinella spiralis cause...

"PERIORBITAL EDEMA" - swollen eyes

27

How is trichinella spiralis diagnosed?

Muscle biopsy

28

What is the more common name for subcutaneous filariasis?

River Blindness

29

How is river blindness contracted?

Transmitted by black flies

30

What is the more common name for dracunculus medinesis?

Guinea worm

31

How is guinea worm contracted?

Infected water (able to penetrate skin!!)

32

Where does the guinea worm migrate?

Legs and feet

33

Wuchereria bancrofti is what type of parasite?

Lymphatic filariasis

34

How is Wuchereria bancrofti transmitted?

Mosqitos

35

What is a typical symptom of Wuchereria bancrofti

Elephantiasis -> major malformations

36

What are the types of cestodes?

Hymenolepis nana
Taenia saginata
Taenia solium
Diphyllobothrium latum

37

What is the most common cestode?

Hymenolepis nana

38

What is a more common name for Hymenolepis nana

Dwarf tape worm

39

How do we contact Hymenolepis nana

By ingesting the eggs

40

What are the symptoms of Hymenolepis nana

Assymptomatic

41

How do we diagnose Hymenolepis nana

Visible eggs in stool

42

What is another name for taenia saginata

Beef tape worm

43

What is unique about taenia saginata?

Worm is motile and segmented so that it can get into the cow

44

What is another name for taenia solium

Pork Tape Worm

45

What is unique about taenia SOLIUM?

Not motile or segmented as pigs eat their own shit

46

What is a common name for diphyllobothrium latum

Fish tape worm

47

What is a common result of diphyllobothrium latum

Enemia

48

What are the types of trematodes?

Parasonimus Westermani
Schistosomiasis Acute Phase

49

How do we contract parasonimus westermani?

By eating undercooked crabs or crayfish

50

What area of the body does parasonimus westermani infect?

The lungs

51

What is the reason for the most common cause of hemoptysis (blood cough)

parasonimus westermani

52

What is a more common name for Schistosomiasis Acute Phase

swimmers itch

53

What are the two types of Schistosomiasis Acute Phase

S, mansoni - intestinal
S. haematobium - bladder