Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

MTAP 1 FINALS > Parasitology (Trematodes) > Flashcards

Parasitology (Trematodes) Flashcards

1
Q

Commonly referred as flukes/flatworms

A

Trematodes

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

Blood flukes:

A

Genus Schistosoma

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

Hosts for Trematodes

A

Definitive: Man
Intermediate: Snails

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

Infective stage of blood flukes

A

Forked tailed cercaria

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

larva that has mouth, GIT and tail (fork tailed)

A

Cercaria

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

MOT for blood flukes

A

Skin penetration

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

General characteristics of Blood flukes

A

Non- hermaphroditic/Dioecious (sexes are separate)

Adult worm is not leaf like, have oral and ventral suckers

Male: short and robust
Female: longer and slender

Eggs are non-operculated

Require only one intermediate and one definitive host

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

Male worms are provided with ______ to carry female during copulation

A

gynecophoric canal

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

Largest Adult Blood Fluke

A

Schistosoma japonicum

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

Smallest Adult Blood Fluke

A

S. mansoni

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

Appearance:

Integument is with fine tuberculation

A

S. haematobium
S. japonicum

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

Appearance:

Integument is rough, and with coarse tuberculation

A

S. mansoni

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

Habitat for S. japonicum

A

Superior mesenteric veins

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

Habitat for S. mansoni

A

Inferior mesenteric veins or veins draining rectum

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

Habitat of S. haematobium

A

Vesical veins or veins draining the urinary bladder

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

Blood flukes detected in stool

A

S. mansoni
S. japonicum

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

Blood fluke detected in urine

A

S. haematobium

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

No. of testes in males of S. japonicum

A

6-8

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

No. of testes in S. mansoni

A

8-9

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

No. in testes of S. japonicum

A

4-5

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

No. of eggs in uterus of S. haematobium

A

50-100

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

No. of eggs in S. mansoni

A

1-4

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

No. of eggs in S. haematobium

A

20-30

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

Intermediate host:

Bulinus, Physopsis

A

S. haematobium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Intermediate host:

Biomphalaria,
Planorbis and
Tropicorbis

A

S. mansoni

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Intermediate host:

Oncomelania quadrasi

A

S. japonicum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Eggs:

Non-operculated with distinct terminal spine

Measures 112-170 x 40-70 um

A

S. haematobium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Eggs:

Non-operculated egg with distinct lateral spine

Measures 45-70 x 140 - 180 um

A

S. mansoni

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Eggs:

Non-operculated, minute lateral spine.

Tissue or red cells.

Size:70 - 105 x 50 -80 um

A

S. japonicum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Life cycle of Blood Flukes

A

Eggs → Miracidium → Sporocyst → Circarium → Adult

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

sac-like larva developed from miracidium

A

sporocysts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

larva equipped with a mouth and GIT; forked tail

33
Q

Lung, Liver, and Intestinal Flukes general characteristics

A

Hermaphroditic or monoecious (combined sexes)

Adult with leaf like body and non-segmented body

With oral and ventral suckers

Eggs are operculated

34
Q

Infective stage of Lung, Liver, and Intestinal Lung Fluke

A

Metacercaria

35
Q

MOT of Lung, Liver, and Intestinal Flukes

36
Q

Hosts for Lung, Liver, and Intestinal Flukes

A

1st intermediate host: Snails

2nd intermediate host: Varies

37
Q

Developmental stages of hermaphroditic flukes

A

Operculated egg → miracidium → sporocyst → rediae → cercaria → metacercaria → adult

38
Q

larva released from the egg when hatched

A

Miracidium

39
Q

Found in 1st intermediate host

A

Redia
Cercaria

40
Q

larva developed from sporocyst, absent in schistosoma

41
Q

larva developed from redia

42
Q

Found in the 2nd intermediate host of hermaphroditic flukes

A

Metacercaria

43
Q

1st intermediate host (snails):

Brotia asperata

A

P. westermani

44
Q

1st intermediate host (snails):

Lymnea philippinensis

A

Fasciola hepatica

45
Q

1st intermediate host (snails):

Segmentina spp.
Hippeutis spp

A

Fasciolopsis buski

46
Q

1st intermediate host (snails):

Alocinma spp.
Bulimus spp.
Parafossarulus spp.

A

Clonorchis sinensis

47
Q

1st intermediate host (snails):

Bithynia spp.

A

Opistorchis felineus

48
Q

1st intermediate host (snails):

Gyralus convexiusculus
Hippeutis umbicalis

A

Echinostoma ilocanum

49
Q

1st intermediate host (snails):

Pirenella spp.
Cerithidea spp

A

Heterophyes heterophyes

50
Q

1st intermediate host (snails):

Semisulcospira spp.
Thiara spp.
Hua spp.

A

M. yokogawai

51
Q

2nd intermediate host:

Fresh mountain crabs
Sundathelpusa spp., Parathelpusa spp

A

P. westermani

52
Q

2nd intermediate host:

Watercress (Nasturtium officiale)

A

F. hepatica

53
Q

2nd intermediate host:

Kangkong (Ipomea obscura)

Fresh water vegeration; edible water plants

A

F. hepatica

54
Q

2nd intermediate host:

Water caltrop (Trapa)
Water (Eliocharis)
Bamboo shoots (Zizania)

55
Q

2nd intermediate host:

Cyprinoid Fishes

A

Clonorchis sinensis
Opistorchis felineus

56
Q

2nd intermediate host:

Kuhol (Pila luzonica)

Susong pampang (Vivipara angularis)

A

Echinostoma ilocanum

57
Q

2nd intermediate host:

Fishes (Mugil-balanak, Tilapia, and Arius manilensis - kanduli)

A

H. heterophyes

58
Q

2nd intermediate host:

Salmonoid fishes (Plecoglossus and Salmon)

Cyprinoid fishes (Richardsonium)

A

M. yokogawai

59
Q

Adult worm appearance:

Coffee bean

A

P. westermani

60
Q

Adult worm appearance:

Cephalic cone (appears to have shoulders)

Branched testes, ovaries, and intestinal ceca

A

F. hepatica

61
Q

Adult worm appearance:

Appears like F. hepatica but no cephalic cone

Intestinal ceca is unbranced

62
Q

Adult worm appearance:

Equipped with 3rd genital sucker/gonotyl

A

H. heterophyes

63
Q

Adult worm appearance:

Closely resembles H. heterophyes; slightly larger and no genital sucker

A

M. yokogawai

64
Q

Adult worm appearance:

Equipped with an oral sucker with spines called “circum-oral disk with spines)

A

E. ilocanum

65
Q

Egg morphology:

Flat operculum (opening like)

Opposite the operculum: abopercular shell thickening

Resembles D. latum

A

P. westermani

66
Q

Egg morphology:

broadly ovoidal with wide operculum

opposite the operculum is abopercular knob (median protuberance)

A

Clonorchis sinensis

67
Q

Egg morphology:

Closely resembles clonorchis but is elongately ovoidal with tapering ends

A

Opistorchis felineus

68
Q

Egg morphology:

Thick shelled light brown eggs containing developed miracidium

Distinct operculum and similar with those of clonorchis but no abopercular knob

A

H. heterophyes

69
Q

Egg morphology:

Thin shelled light yellow egg contains developed miracidium

A

M. yokogawai

70
Q

Egg morphology:

Large ovoidal, yellowish brown that contains underdeveloped miracidium

A

F. hepatica

71
Q

Egg morphology:

Large operculated eggs, indistinguishable from fasciola hepatica and fasciola gigantica

Eggs are yellowish and ellipsoidal, with clear thin shell and small operculum. Egg contains underdeveloped miracidium

72
Q

Egg morphology:

Straw colored, operculated ovoid eggs

A

E. ilocanum

73
Q

Egg measurement:

83-116 x 58-69 um

A

E. ilocanum

74
Q

Egg measurement:

130 - 140 x 80 - 85 um

75
Q

Egg measurement:

27 x 16 um

A

M. yokogawai

76
Q

Egg measurement:

26-30 x 150-17 um

A

H. heterophyes

77
Q

Egg measurement:

30 x 11 um

A

O. felineus

78
Q

Egg measurement:

20-120 um x 50-60 um

A

P. westermani

MTAP 1 FINALS (16 decks)

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