Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Parasitology > OL-LEC-2 HELMINTHS INTRO > Flashcards

OL-LEC-2 HELMINTHS INTRO Flashcards

(83 cards)

Start Studying
1
Q

What kind of reproduction often occurs in the

Definitive host?
Intermediate host?

A

Sexual -D
Asexual -I

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

Stages of development of Brugia malayi

A

Microfilaria
L1
L2
L3
L4 larvae
Adult

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

Which stage of Brugia malayi enters the human body?

A

L3

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

helminths two phyla that parasitize humans

A

Platyhelminthes
Nematoda

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

Two classes under nematoda

A

Adenophorea
Secernentea

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

Two classes under platyhelminthes

A

Cestoda
Trematoda

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

Most helminths are _____ according to their birthing development

A

oviparous (lays eggs)

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

Types or other names or larvae in nematodes

A

Rhabditiform
Filariform
Microfilaria

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

Particular names of larvae specifically true to intestinal nematodes

A

Rhabditiform
Filariform

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

Microfilaria larvae is particularly true to what type of parasites?

A

Blood nematodes

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

Parasites that are considered to have microfilaria as their larvae form

A

Brugia malayi
Wuchereria bancrofti
Mansonella ozzardi, perstans
Onchocerca volvulus

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

Cestodes name of larvae

A

Cystericus
Cysticercoid
Coenurus
Coracidium
Procercoid
Plerocercoid
Hydatid cyst

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

Dibothriocephalus spp. enumerate (minor diphyllobothrium tapeworms

A

Dibothriocephalus / Diphyllobotrium
nihonkaiense
dentriticus / dentriticum

Diphyllobothrium stemmacephalum = Diphyllobothrium yonagoense

Diphyllobothrium balaenopterae = Diplogonoporus grandis

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

Spirometra spp enumerate

A

S. erinace, mansoni, theileri

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

Parasites that has coenurus larvae

A

Taenia multiceps

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

Parasites with cysticercus - cysticerci as their larvae

A

T. saginata and solium

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

Parasites with cysticercoid as their larvae

A

Hymenolepis spp.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Parasites with hydatid cyst as their larvae

A

Echinococcus spp.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Human infected with a larvae of Taenia solium

A

cysticercosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Cysticercosis of cattle is caused by what parasite

A

Larvae of Taenia saginata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Larvae of Taenia solium migrated to brain causes what disease

A

Neurocysticercosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

L1 larvae is also known as

A

coracidium / coracidia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

L2 larva is also known as

A

Procercoid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

L3 larva is also known as

A

Plerocercoid/ Sparganumi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
what do you call an infection of Spirometra
Sparganosis (L3 larva is the infective stage)
26
Trematodes names of larvae
Miracidium Sporocyst Redia Cercaria Metacercaria
27
Trematodes Primary intermediate hosts
Snails Mollusks Gastropods
28
What is required for the embryonation of the egg of trematodes
Water (aquatic life cycle)
29
Two types of Sporocyst
Mother and Daughter sporocyst (1 and 2)
30
Infective stage of larvaes of trematodes
Metacercaria
31
Mother Sporocyst can develop to?
Daughter Sporocyst or Mother redia to daughter redia
32
The most common development cycle of most trematodes
Egg Miracidium Mother Sporocyst Mother Redia Daughter Redia Cercaria Metacercaria Adult
33
The only trematode spp that has a different life cycle
Schistosoma spp.
34
The development cycle of Schistosoma
Egg Miracidium Mother sporocyst DAUGHTER SPOROCYST Cercaria Adult worm note: NO REDIA AND METACERCARIA
35
All trematodes are __________ except Schistosoma
Hermaphroditic or monoecious
36
All __________ complete their life cycle in one host
Nematodes
37
Nematodes that doesn't only have one host
Filarial worms and Dracunculus medinensis
38
The hosts for filarial nematodes
Man and insect vector
39
Dracunculus hosts
Water flea/ cyclops / copepod as second host
40
All _____________ except __________ complete their life cycle in TWO different hosts
Cestodes Hymenolepis nana
41
Hymenolepis nana is different from other cestodes because?
They may or may NOT have an intermediate host
42
Most cestodes have man as their definitive host except?
Echinococcus granulosus
43
Echinococcus has man as their ___________ host
Intermediate
44
For Taenia solium man servers as _______________ host
Both intermediate and definitive
45
What do you call the human infection of Taenia solium if man is the definitive host?
Taeniasis
46
What do you call the human infection of Taenia solium if man is the intermediate host?
Cysticercosis
47
All _____ complete their life cycle in one definitive host and two intermediate host
Trematodes
48
Ascaris lumbricoides embryonated egg can be eaten through?
geophagia
49
cyclophyllidean and pseudophyllidean type of life cycle
C- terrestrial P- aquatic
50
In trematodes what level of development is infecting the first intermediate host?
Miracidium
51
Miracidium goes out on what part of the egg
operculum
52
What level of development of trematodes enters the second intermediate and acts as the infective stage for this host?
cercaria
53
Infective stage of trematodes to definitive host
Metacercaria
54
Two classes of nematodes
Adenophorea and Secernentea
55
Adenophorea and Secernentea difference in eggs
A- with plug at either end S- without plugs at either end
56
Adenophorea and Secernentea difference in excretory system
A- without lateral canals S- with lateral canals
57
Adenophorea and Secernentea difference in caudal papillae
A- absent or few S- numerous
58
Adenophorea and Secernentea difference in stage of larva infective to final host
A- first larval stage (trichinella) or embryonated egg (trichuris) S- Third larval stage or embryonated egg
59
Examples of Secernentea
Ascaris Enterobius Toxocara cati and canis Dioctophyme renale Strongyloides
60
Egg shape of Ascaris
cuboidal
61
Egg shape of Enterobius
D-shape
62
Egg shape of Toxocara
cuboidal
63
Examples of adenophorea
Trichuris Capillaria philippinensis and hepatica Trihinella spiralis
64
Trichuris egg shape
Barrel shape with protruding bipolar plug
65
Capillaria philippinensis egg shape
barrel with flat bipolar plug
66
Nematodes, cestodes, and trematodes difference in shape
Elongated cylindrical unsegmented Tape-like, segmented Leaf-like, unsegemented
67
Nematodes, cestodes, and trematodes difference in sexes
Diecious (seperate) Monoecious Monoecious except schistosoma
68
Nematodes, cestodes, and trematodes difference in head
No suckers, no hacks, some have well developed buccal capsule Suckers, often with hooks Suckers, no hooks
69
Nematodes, cestodes, and trematodes difference in alimentary canal
Present and complete with an anteriorly terminal mouth and posteriorly subterminal anus absent present but incomplete; no anus
70
Nematodes, cestodes, and trematodes difference in body cavity
Present Absent Absent
71
Nematodes, cestodes, and trematodes difference in mode of infection
Infection by ingestion of eggs or penetration of larvae thru surfaces or arthropod vector or ingestion of encysted larvae generally by encysted larvae mainly by larval stages, entering intestinal tract, sometimes through the skin
72
Difference of sizes in the sexes of nematodes and trematodes
N- Female is larger T- Male is larger
73
cestodes that has hooks
Armed
74
Trematodes are considered ____ since they have suckers but no hooks
unarmed
75
Armed cestodes may also contain?
crown (rostellum)
76
Purpose of scolex in general
holdfast organ
77
Number of suckers in cestodes and trematodes
C- 4 T- 2
78
Two types of suckers in trematodes
Oral Ventral (acetabulum)
79
How helminths affect man
Pathological lesions Malnutrition Acute or chronic
80
Diphyllbothrium latum can cause what deficiency
Vit b12 deficiency
81
What type of disease can hookworms produce?
Iron deficiency anemia
82
What parasites can cause iron deficiency anemia
Hookworms and whipworms
83
Types of malnutrition that parasites can produce
Alteration of diet or dietary deficiencies Interference in antibody production Decrease of inflammatory reaction Lowering of resistance

Parasitology (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions