filarial nematode Flashcards

1
Q

graceful curve

a. wuchereria bancrofti
b. brugia malayi
c. loa loa
d. onchocerca volvulus

A

Wuchereria bancrofti

  • graceful curve
  • sheated without cuboidal nuclei
  • affects LOWER EXTREMETIES
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2
Q

Which of the following filarial nematodes affects the lower extremeties

a. wuchereria bancrofti
b. brugia malayi
c. loa loa
d. onchocerca volvulus

A

wuchereria bancrofti
- affects the lower extremities

brugia malayi
- affects the upper extremities

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3
Q

lymphatic vessel involvement within the retroperitoneal region or subdiaphragmatic lymphatic vessels

a. wuchereria bancrofti
b. brugia malayi
c. loa loa
d. onchocerca volvulus

A

wuchereria bancrofti

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4
Q

lymphatic filarial parasite resembling W.bancrofti that do not typically cause lymphadenitis in the genital regions

a. wuchereria bancrofti
b. brugia malayi
c. loa loa
d. onchocerca volvulus

A

brugia malayi

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5
Q

kinky curve

a. wuchereria bancrofti
b. brugia malayi
c. loa loa
d. onchocerca volvulus

A

brugia malayi

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6
Q

sheated with 2 caudal nuclei

a. wuchereria bancrofti
b. brugia malayi
c. loa loa
d. onchocerca volvulus

A

brugia malayi

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7
Q

sheated without caudal nuclei

a. wuchereria bancrofti
b. brugia malayi
c. loa loa
d. onchocerca volvulus

A

wuchereria bancrofti

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8
Q

which of the filarial nematode has a caudal nuclei continuous with those of the trunk

a. wuchereria bancrofti
b. brugia malayi
c. loa loa
d. onchocerca volvulus

A

loa loa

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9
Q

which of the filarial nematode is African eyeworm

a. wuchereria bancrofti
b. brugia malayi
c. loa loa
d. onchocerca volvulus

A

loa loa

  • african eyeworm
  • causative agent : Calabar / Fugitive / Tropical swelling (periorbital edema)
  • vector : deer fly / tabanid fly or mango fly (CHRYSOPS)
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10
Q

how many years does loa loa persists in human host

a. 7 years
b. 12 years
c. 3 years
d. 17 years

A

17 years

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11
Q

what is the vector of Loa Loa

a. deer fly
b. black fly
c. gnats
d. ixodes

A

loa loa

  • african eyeworm
  • causative agent : Calabar / Fugitive / Tropical swelling (periorbital edema)
  • vector : deer fly / tabanid fly or mango fly (CHRYSOPS)
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12
Q

which of the filarial nematode is both posterior and anterior end are nuclei free

a. wuchereria bancrofti
b. brugia malayi
c. loa loa
d. onchocerca volvulus

A

onchocerca volvulus

  • unsheated
  • BOTH anterior and posterior are nuclei free
  • crooked tail with nuclei
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13
Q

what is the causative agent of Onchocerca volvulus

a. african river blindness
b. tropical swellings
c. african eyeworm
d. nota

A

onchocerca volvulus

  • unsheated
  • BOTH anterior and posterior are nuclei free
  • crooked tail with nuclei
  • causative agent : african river blindness
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14
Q

what is the Vector of Onchocerca volvulus

a. deer fly
b. black fly
c. gnats
d. nota

A

onchocerca volvulus

  • unsheated
  • BOTH anterior and posterior are nuclei free
  • crooked tail with nuclei
  • causative agent : african river blindness
  • vector : BLACK FLY (Simulum)
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15
Q

which of the filarial nematode has a nuclei extending up to the tip of the blunt tail

a. ochocerca volvulus
b. masonella perstans
c. mansonella ozzardi
d. mansonella streptocerca

A

mansonella perstans
- nuclei EXTENDING

perstay kaya nag extend

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16
Q

which of the filarial nematode has a broad and blunt with nuclei

a. ochocerca volvulus
b. masonella perstans
c. mansonella ozzardi
d. mansonella streptocerca

A

mansonella perstans

17
Q

which of the filarial nematode has a tail tapers to a thin filament containing 4-6 ovoid nuclei

a. ochocerca volvulus
b. masonella perstans
c. mansonella ozzardi
d. mansonella streptocerca

A

mansonella ozarrdi

O(zzardi)void

THIN

18
Q

which of the filarial nematode has a Posterior end is strongly bent and they has a crooked tail with nuclei

a. ochocerca volvulus
b. masonella perstans
c. mansonella ozzardi
d. mansonella streptocerca

A

mansonella streptocerca

m. streptocerca and o. volvulus has a crooked tail with nuclei BUT M. STREPTOCERCA HA SA POSTERIOR END THAT IS STRONGLY BENT