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MICRO/PARA > LE 2 - Blood Nematode and Cestodes (LAB) > Flashcards

LE 2 - Blood Nematode and Cestodes (LAB) Flashcards

1
Q

Identify the Microfilaria
A. WUCHERERIA BANCROFTI
B. BRUGIA MALAYI
C. LOA LOA
D. ONCHOCERCA VOLVULUS
E. MANSONELLA PERSTANS

A

A. WUCHERERIA BANCROFTI

Bancroftian filariasis

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2
Q

What type of organism is Wuchereria bancrofti?

A) Bacteria
B) Virus
C) Microfilaria
D) Fungus

A

C) Microfilaria

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3
Q

How would you describe the appearance of adult Wuchereria bancrofti worms?

A) Bulky and segmented
B) Threadlike
C) Spiral-shaped
D) Oval with legs

A

B) Threadlike

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4
Q

Are the microfilariae of Wuchereria bancrofti sheathed?

A) No
B) Yes

A

B) Yes

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5
Q

How is the body of Wuchereria bancrofti’s microfilariae shaped?

A) Straight
B) Spiral
C) Gently curved
D) Zig-zag

A

C) Gently curved

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6
Q

How does the tail of Wuchereria bancrofti’s microfilariae appear?

A) Blunt
B) Tapered to a point
C) Forked
D) Feathered

A

B) Tapered to a point

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7
Q

Do the microfilariae of Wuchereria bancrofti exhibit terminal nuclei?

A) Yes
B) No

A

B) No

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8
Q

Which organism does the fresh specimen of Wuchereria bancrofti’s microfilariae resemble?

A) Tiny worms
B) Minute snake-like organisms
C) Small fish
D) Microscopic spiders

A

B) Minute snake-like organisms

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9
Q

Which of the following is NOT a characteristic of Wuchereria bancrofti’s microfilariae?

A) Sheathed
B) Gently curved body
C) Exhibit terminal nuclei
D) Tail tapered to a point

A

C) Exhibit terminal nuclei

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10
Q

Wuchereria bancrofti primarily affects which part of the human body?

A) Brain
B) Lungs
C) Lymphatic system
D) Digestive system

A

C) Lymphatic system

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11
Q

Identify the Microfilaria
A. WUCHERERIA BANCROFTI
B. BRUGIA MALAYI
C. LOA LOA
D. ONCHOCERCA VOLVULUS
E. MANSONELLA PERSTANS

A

B. BRUGIA MALAYI
Malayan Filariasis

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12
Q

What is a distinctive feature of the microfilariae of Brugia malayi?

a) They are unsheathed.
b) They have 5 terminal nuclei.
c) They are sheathed.
d) They have multiple tails.

A

c) They are sheathed.

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13
Q

How many terminal nuclei do the microfilariae of Brugia malayi have?

a) 1
b) 2
c) 3
d) 4

A

b) 2

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14
Q

How are the terminal nuclei of Brugia malayi’s microfilariae in relation to the other nuclei in the tail?

a) Merged with other nuclei.
b) Distinctly separated from the other nuclei.
c) Positioned at the very tip of the tail.
d) They are larger than the other nuclei.

A

b) Distinctly separated from the other nuclei.

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15
Q

Which of the following best describes the coiling of Brugia malayi species?

a) Loosely coiled.
b) Semi-coiled.
c) Tightly coiled.
d) Not coiled at all.

A

c) Tightly coiled.

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16
Q

Which of the following worms is smaller in size when compared to Brugia malayi?

a) Ascaris lumbricoides
b) W. bancrofti
c) Taenia solium
d) Enterobius vermicularis

A

b) W. bancrofti

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17
Q

Identify the Helminth Larvae:

A. Trichinella spiralis (Trichina worm)
B. Taenia solium (Pork tapeworm)
C. Taenia saginata (Beef tapeworm)
D. Hymenolepis nana (Dwarf tapeworm)
E. Hymenolepis diminuta (Rat tapeworm)

A

A. Trichinella spiralis (Trichina worm)

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18
Q

What is the infective stage of Trichinella spirallis?

a) Adult worm
b) Egg
c) Encysted Larva
d) Free-swimming larva

A

c) Encysted Larva
Rationale: The encysted larva is the stage that infects a new host when ingested through contaminated meat.

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19
Q

Where do the larvae of Trichinella spirallis become encysted?

a) Liver
b) Lungs
c) Striated muscle fiber
d) Intestine

A

c) Striated muscle fiber
Rationale: The larvae encyst in striated muscle fibers, forming nurse cells.

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20
Q

Trichinella spirallis: What is the size of the encysted larva?

a) 2 mm in length
b) 1 mm in length
c) 3 mm in length
d) 0.5 mm in length

A

b) 1 mm in length
Rationale: The encysted larva measures 1 mm in length and 36 um in diameter.

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21
Q

Trichinella spirallis: Which environment do the larvae prefer for development?

a) Rich in glycogen
b) Oxygen-rich
c) Poor in glycogen and hypoxic
d) High in glucose

A

c) Poor in glycogen and hypoxic
Rationale: The larvae prefer to develop in muscles that are poor in glycogen and have a hypoxic environment.

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22
Q

Trichinella spirallis: How long does it take for the larvae to become encysted after entering the muscle cells?

a) 10 days
b) 20 days
c) 30 days
d) 40 days

A

b) 20 days
Rationale: Within 20 days after entering the muscle cells, the larvae become encysted.

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23
Q

What is the name given to a muscle cell carrying a larva of T. spirallis?

a) Cyst cell
b) Nurse cell
c) Host cell
d) Larval cell

A

b) Nurse cell
Rationale: A muscle cell carrying a larva of T. spirallis is referred to as a nurse cell.

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24
Q

Trichinella spirallis: How long can the encysted larva survive?

a) Days
b) Weeks
c) Months to years
d) Hours

A

c) Months to years
Rationale: The encysted larva can survive for months to years in the host.

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25
Q

Trichinella spirallis: What is the shape of the cyst formed by tissue reaction around encapsulated larvae?

a) Spherical
b) Rectangular
c) Ovoid
d) Triangular

A

c) Ovoid
Rationale: The cyst is ovoid, measuring 400 um x 250 um in size.

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26
Q

Which of the following is NOT a mode of transmission for Trichinella spirallis?

a) Ingested through contaminated pork
b) Through insect bites
c) Eating raw or undercooked pork
d) Inadequately processed sausages

A

b) Through insect bites
Rationale: Trichinella spirallis is primarily transmitted through ingestion of contaminated meat, not through insect bites.

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27
Q

Trichinella spirallis: Where do the larvae immediately penetrate after being released in the host?
a) Bloodstream
b) Liver
c) Mucosal epithelium
d) Heart

A

c) Mucosal epithelium
Rationale: After being released, the larvae immediately penetrate the mucosal epithelium of the host.

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28
Q

Trichinella spirallis: How many times do the larvae moult before developing into adults?
a) Once
b) Twice
c) Three times
d) Four times

A

d) Four times
Rationale: The larvae moult four times before they develop into adults.

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29
Q

Trichinella spirallis: Which of the following is NOT a site where larvae get deposited?
a) Muscles
b) Central nervous system
c) Kidneys
d) Other sites

A

c) Kidneys
Rationale: The larvae get deposited in muscles, the central nervous system, and other sites, but not in the kidneys.

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30
Q

Trichinella spirallis: What is the average time required for complete development from infection?
a) 7 - 10 days
b) 17 - 21 days
c) 25 - 30 days
d) 1 - 5 days

A

b) 17 - 21 days
Rationale: The time required for complete development from infection takes about an average of 17 - 21 days.

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31
Q

Trichinella spirallis: Which of the following methods can decontaminate meat containing infective larvae?
a) Prolonged freezing
b) Short-term freezing
c) Sun drying
d) Microwaving

A

a) Prolonged freezing
Rationale: Prolonged freezing (20 days in a normal freezer or at -20°C for 3 days) decontaminates the meat, making it safe from infective larvae.

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32
Q

Identify the cestode:

A

Taenia ova

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33
Q

Which of the following layers covers the Cyclophyllidean ovum?

a) Chorion
b) Embryophore
c) Zona pellucida
d) Vitelline membrane

A

b) Embryophore
Rationale: The Cyclophyllidean ovum is covered by two layers: the egg shell and the embryophore.

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34
Q

What is the shape of the Cyclophyllidean ovum?

a) Oval
b) Spherical
c) Rectangular
d) Triangular

A

b) Spherical
Rationale: The Cyclophyllidean ovum is described as spherical in shape.

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35
Q

Which of the following is NOT a characteristic of the Cyclophyllidean ovum?

a) Embryonated from the beginning
b) The embryo is ciliated
c) Eggs are not percolate
d) Covered by an embryophore

A

b) The embryo is ciliated
Rationale: The embryo of the Cyclophyllidean ovum is not ciliated.

36
Q

What is the infective stage of Taenia spp?

a) Adult worm
b) Egg
c) Cysticercus larva
d) Gravid proglottid

A

c) Cysticercus larva
Rationale: The infective stage of Taenia spp is the Cysticercus larva.

37
Q

Which animal serves as the intermediate host for T. saginata?

a) Pig
b) Sheep
c) Cow
d) Horse

A

c) Cow
Rationale: The cow serves as the intermediate host for T. saginata.

38
Q

Where does Taenia solium primarily reside in the human body?

a) Stomach
b) Colon
c) Upper jejunum
d) Liver

A

c) Upper jejunum
Rationale: The habitat of Taenia solium in humans is the upper jejunum.

39
Q

Which of the following is a diagnostic stage for Taenia spp?

a) Cysticercus larva in blood
b) Eggs or gravid proglottids in feces
c) Adult worm in stomach
d) Larvae in muscles

A

b) Eggs or gravid proglottids in feces
Rationale: The detection of eggs or gravid proglottids in feces is a diagnostic stage for Taenia spp.

40
Q

Which meat, when ingested raw or undercooked, can transmit T. solium?

a) Chicken
b) Beef
c) Pork
d) Mutton

A

c) Pork
Rationale: Ingestion of raw or undercooked pork can lead to the transmission of T. solium.

41
Q

What is the definitive host for Taenia spp?

a) Cow
b) Pig
c) Rat
d) Human

A

d) Human
Rationale: The definitive host for Taenia spp is humans.

42
Q

Which of the following is NOT a method of diagnosing Taenia spp infection?

a) Identifying the scolex
b) Identifying the egg
c) Identifying the characteristic proglottids
d) X-ray imaging

A

d) X-ray imaging
Rationale: Specific diagnosis for Taenia spp rests on identifying the characteristic proglottids, eggs, or scolex, not X-ray imaging.

43
Q

What is the recommended treatment dosage for Taenia spp infection in adults and children?
a) 1 to 5 mg/kg
b) 5 to 10 mg/kg
c) 10 to 15 mg/kg
d) 15 to 20 mg/kg

A

b) 5 to 10 mg/kg
Rationale: The treatment is given at a dose of 5 to 10 mg/kg as a single dose for both adults and children.

44
Q

Which of the following is NOT a layer of the Cyclophyllidean ovum?
a) Egg shell
b) Embryophore
c) Chorion

A

c) Chorion

Rationale: The Cyclophyllidean ovum is covered by the egg shell and embryophore

45
Q

Which of the following meats, when ingested raw or undercooked, can transmit T. saginata?
a) Chicken
b) Beef
c) Pork
d) Mutton

A

b) Beef
Rationale: Ingestion of raw or undercooked beef can lead to the transmission of T. saginata.

46
Q

Which part of the human body is the primary habitat for Taenia spp?
a) Stomach
b) Colon
c) Large intestine
d) Small intestine

A

d) Small intestine

Taenia solium - Upper jejunum
Taenia saginata - Ileum (Small Intestine)

47
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

B. Taenia saginata (Beef tapeworm)
Mature Segment/ PROGLOTTID

MATURE PROGLOTTIDS
- No accessory ovary
- 2 ovaries, tubular uterus, common atrium at the lateral side
- (+) vaginal spinchter

48
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

B. Taenia saginata (Beef tapeworm)
Gravid segment/ PROGLOTTID

  • More lateral branches (15-20)
49
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

B. Taenia saginata (Beef tapeworm)
Gravid segment/ PROGLOTTID

  • More lateral branches (15-20)
50
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

B. Taenia saginata (Beef tapeworm)
Scolex

51
Q
  1. Which of the following describes the shape of the scolex of Taenia saginata?

A) Spherical

B) Cuboidal

C) Triangular

D) Cylindrical

A

B) Cuboidal

Rationale: The scolex of Taenia saginata is described as having a cuboidal shape.

52
Q
  1. How many acetabula (suckers) are present on the scolex of Taenia saginata?

A) Two

B) Three

C) Four

D) Five

A

C) Four

Rationale: Taenia saginata possesses four prominent acetabula on its scolex, which it uses to attach to the host’s intestine.

53
Q
  1. Which feature is absent in the scolex of Taenia saginata?

A) Acetabula

B) Rostellum

C) Neck

D) Proglottids

A

B) Rostellum

Rationale: The scolex of Taenia saginata is devoid of a rostellum, which is a beak-like projection found in some other tapeworm species.

54
Q
  1. Which tapeworm species is known to have hooks on its scolex?

A) Taenia saginata

B) Taenia solium

C) Both A and B

D) Neither A nor B

A

B) Taenia solium

Rationale: While Taenia saginata lacks hooks on its scolex, Taenia solium, another common tapeworm species, possesses hooks.

55
Q
  1. Which common name is associated with Taenia saginata due to its intermediate host?

A) Pork tapeworm

B) Fish tapeworm

C) Beef tapeworm

D) Chicken tapeworm

A

C) Beef tapeworm

Rationale: Taenia saginata is commonly referred to as the “beef tapeworm” because its intermediate hosts are cattle.

56
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

A. Taenia solium (Pork tapeworm)
SCOLEX
2 – 7 m in length

ARMED Scolex - w/ rostellum
2 rows of hooklets
4 suckers

57
Q
  1. What is the shape of the adult Taenia solium?

A) Spiral

B) Round

C) Ribbon-like

D) Triangular

A

C) Ribbon-like

Rationale: The adult Taenia solium is flat and ribbon-like in shape.

58
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

A. Taenia solium (Pork tapeworm)

GRAVID PROGLOTTID
- Other structure atropied
- Only uterus remain & produces lateral
branches
- Stained with india ink in the common atrium
- No. of lateral branches (7-15 per side)

59
Q
  1. Which feature is present in the scolex of Taenia solium that helps it anchor to the host’s intestine?

A) Rostellum with hooks

B) Long neck

C) Multiple rows of suckers

D) Spines

A

A) Rostellum with hooks

Rationale: The rostellum of Taenia solium is armed with hooks, which help the tapeworm anchor itself to the host’s intestine.

60
Q
  1. Which region of Taenia solium gives rise to the proglottids?

A) Rostellum

B) Acetabula

C) Neck

D) Tail

A

C) Neck

Rationale: Just behind the scolex is the neck region of T. solium, which gives rise to the proglottids (individual segments of the tapeworm).

61
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

A. Taenia solium (Pork tapeworm)
Cysticercus cellulosae

from imroperly cooked measly pork

CYSTICERCOSIS CELLULOSAE
– larval infection (white spot in the pork meat)
- it produces adult infection, larval infection, and autoinfection

62
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

A. Taenia solium (Pork tapeworm)
Cystecercus cellulosae

from improperly cooked measly pork

CYSTICERCOSIS CELLULOSAE
– larval infection (white spot in the pork meat)
- it produces adult infection, larval infection, and autoinfection

63
Q

Identify the cestode and what stage?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)
Stage : OVUM

  • 25-40 µm in dm
  • Spherical, thin-shelled and hyaline looking w/
    brick – red tinge color
  • 8-15, are contained in a polygonal uterine blocks called “mother pocket” or “egg capsule.”
64
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)
Scolex

-Small, rhomboidal
-4 cup - like oval suckers
-Median apical, club-shaped
rostellum armed w/1-7 circlets of spines
-Number of rings dependent on age

65
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)
Mature segment/proglottids

66
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)
Mature segment/proglottids

67
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm
Gravid Segment

  • Common atrium on both side
  • Pumpkin-seed shaped
  • Each side has complete reproductive system
68
Q

Identify the cestode and what stage?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

D. Hymenolepis diminuta (Rat tapeworm)
Stage: OVUM

EGGS [60–79 x 72–86 µm]
- Round / ovoidal
- Mature when laid
- Hexacanth embryo
- With polar thickening but no polar filament

69
Q

Identify the cestode and what stage?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

D. Hymenolepis diminuta (Rat tapeworm)
Stage: OVUM

EGGS [60–79 x 72–86 µm]
- Round / ovoidal
- Mature when laid
- Hexacanth embryo
- With polar thickening but no polar filament

70
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

D. Hymenolepis diminuta (Rat tapeworm)
Segment: Scolex

small club-shaped 4 rounded, cup – like suckers w/apical invagination w/ rudimentary “unarmed” rostellum

71
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

D. Hymenolepis diminuta (Rat tapeworm)
Gravid Segment

72
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

D. Hymenolepis diminuta (Rat tapeworm)
Gravid Segment

73
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

D. Hymenolepis diminuta (Rat tapeworm)
Mature segment
-trapezoidal in shape

74
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

D. Hymenolepis diminuta (Rat tapeworm)
Mature segment
-trapezoidal in shape

75
Q

Identify the cestode and what stage?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

C. Hymenolepis nana (Dwarf tapeworm)
Stage: ova

76
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

C. Hymenolepis nana (Dwarf tapeworm)
Rhomboid 4 cup – like suckers Short rostellum with 20-40 spines in a single ring

77
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

C. Hymenolepis nana (Dwarf tapeworm)
Gravid segment

78
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

C. Hymenolepis nana (Dwarf tapeworm)
Gravid segment

79
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

C. Hymenolepis nana (Dwarf tapeworm)
Mature segment

80
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Hymenolepis diminuta (Rat tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

C. Hymenolepis nana (Dwarf tapeworm)
Mature segment

81
Q

Identify the cestode and what stage?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Diphyllobothrium latum (Broad fish tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

D. Diphyllobothrium latum (Broad fish tapeworm)
Stage: OVUM

Shape: Ovoid
W/ Operculum

82
Q

Identify the cestode and what stage?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Diphyllobothrium latum (Broad fish tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

D. Diphyllobothrium latum (Broad fish tapeworm)
Stage: OVUM

Shape: Ovoid
W/ Operculum

83
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Diphyllobothrium latum (Broad fish tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

D. Diphyllobothrium latum (Broad fish tapeworm)
Mature segment

84
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Diphyllobothrium latum (Broad fish tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

D. Diphyllobothrium latum (Broad fish tapeworm)
Mature segment

85
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Diphyllobothrium latum (Broad fish tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

D. Diphyllobothrium latum (Broad fish tapeworm)
Gravid segment/proglottid

86
Q

Identify the cestode and what SEGMENT?

A. Taenia solium (Pork tapeworm)
B. Taenia saginata (Beef tapeworm)
C. Hymenolepis nana (Dwarf tapeworm)
D. Diphyllobothrium latum (Broad fish tapeworm)
E. Dipylidium caninum (Dog/Cat/Double-pored tapeworm)

A

D. Diphyllobothrium latum (Broad fish tapeworm)
Gravid segment/proglottid

MICRO/PARA (15 decks)

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