Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

viro/para exam 3 > GI tract and Tissue-dwelling helminth infections > Flashcards

GI tract and Tissue-dwelling helminth infections Flashcards

1
Q

Trichinosis parasite and transmission

A

Parasite: Trichinella spiralis
Transmission: oral route
Consumption of infected undercooked meat, pork, ham from wild boar or other game animals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Trichinella is found (in body)

A

embedded in mucosa of GI tract

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Trichinella transmission

A

release microphilaria, which wait to be ingested by a carnivorous animal to complete its life cycle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Trichinosis don’t cause much tissue damage unless

A

they go to other organs such as heart or brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Elephantiasis (Lymphatic Filariasis) Parasite and transmission

A

Parasite: Wuchereria bancrofti
Transmission: mosquito insect vector transmits infective microfilariae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Elephantiasis Life-Cycle: Adult worms

A

cause disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How do the Elephantiasis adult worms cause disease?

A

go into lymphatic system and block (cause edema)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

River Blindness parasite and transmission

A

(Onchocerciasis) Parasite: Onchocerca volvulus

Transmission: Blackfly insect vector transmits infective microfilariae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

River Blindness life cycle: microfilarial larvae

A

cause disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

River Blindness: adult filarial worms cause what symptoms?

A

subcutaneous fibrous nodules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

River Blindness: microfilarial larvae can invade the eyes and cause

A

inflammatory lesions leading to sclerosing keratitis and blindness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Hookworm parasite and transmission

A

Parasite: Necator americanus
Ancylostoma duodenale
Transmission: infective larvae penetrate the skin (no insect vector)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Hookworm Life-Cycle: infective larvae

A

mature in the soil, penetrate the skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Hookworm adult worms

A

major cause of disease; bite into mucosa, continuously bite to feed on blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Strongyloides parasite and transmission

A

Parasite: Strongyloides stercoralis
Transmission: infective larvae penetrate the skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Strongyloides Life-Cycle

A

direct parasitic cycle and indirect free living cycle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Strongyloides Life-Cycle: parasitic cycle

A

become infective if soil conditions are poor

18
Q

Strongyloides Life-Cycle: free living cycle

A

feed on bacteria in soil under good conditions

19
Q

Strongyloides symptoms: larvae can cause

A

pneumonitis (larval migration through the lungs)

20
Q

Strongyloides symptoms in AIDS patients

A

Strongyloides hyperinfection syndrome

(massive autoinfection with filariform larvae in the presence of severe immunosuppression)

21
Q

Pinworm parasite and transmission

A

Parasite: Enterobius vermicularis
Transmission: fecal-oral route: uptake of infective eggs

22
Q

Pinworm is the

A

most common parasitic helminth in the US

23
Q

Pinworm is particularly common in

A

children and nursing homes

24
Q

Pinworm diagnosis

A

scotch tape method

25
Q

Ascaris parasite and transmission

A

Parasite: Ascaris lumbricoides
Transmission: oral route: uptake of infective eggs (contaminated food, etc)

26
Q

Acaris life cycle: larvae

A

can cause pneumonitis with eosinophilia (larval migration through the lungs)

27
Q

Acaris life cycle: adult worms

A

can cause obstruction of small intestine, bile ducts and trachea; appendicitis

28
Q

Pork Tapeworm parasite and transmission

A

Parasite: Taenia solium
Transmission: fecal-oral route: uptake of infective eggs
oral route: consumption of infected undercooked pork

29
Q

Pork Tapeworm Life-Cycle: infective eggs

A

give cysticercosis (shed in stool of infected person)

30
Q

Pork Tapeworm Life-Cycle: Infected Raw Meat

A

gives tapeworm

31
Q

Pork Tapeworm neurocysticercosis

A

most common helminth infection of the CNS

32
Q

Dog Tapeworm (Hydatid Disease) parasite and transmission

A

Parasite: Echinococcus granulosus
Transmission: fecal-oral route: uptake of infective eggs

33
Q

Dog Tapeworm life cycle: infective eggs

A

give hydatid disease (cysticercosis)

34
Q

Dog Tapeworm pathology: Echinococcus granulosus

A

causes hydatid disease, has many cysts-if punctured, cysts can spread into circulation

35
Q

Schistosomiasis (Bilharzia) Parasite and transmission

A

Parasite: Schistosoma spec.
Transmission: Aquatic snails as intermediate host
infective cercariae larvae penetrate the skin

36
Q

Schistosomiasis life cycle

A

aquatic snails release infective cercariae; cercariae penetrate the skin

37
Q

Schistosoma mansoni

A

hepatic/intestinal infection

38
Q

Schistosoma haematobium

A

urinary infection

39
Q

Schistosoma japonicum

A

hepatic/intestinal infection

40
Q

mansoni and haematobium are ______, but japonicum is also found in

A

only in humans; also found in bovine (esp water buffalo)

viro/para exam 3 (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions