hookworm Flashcards

1
Q

complex ovejector, sphincter

A

female

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2
Q

caudal bursa, pair of spicules

A

male

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3
Q

has claviform esophagus

A

hookworm

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4
Q

hookworm also known as

A

bursate nematodes

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5
Q

meaning of bursate

A

phasmids

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6
Q

two most common type

A

ancylostoma duodenale and necator americanus

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7
Q

has ventral cutting plates

A

necator americanus

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8
Q

has ventral cutting teeth

A

ancylostoma duodenale

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9
Q

most common in the philippines

A

necator americanus

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10
Q

common name for ancylostoma duodenale

A

old world hookworm

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11
Q

size of adult male (ancylostoma duodenale)

A

8-11 mm x 0.6 mm

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12
Q

size of female (duodenale)

A

10-13mm x 0.6 mm

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13
Q

identifying feature

A

subterminal anal opening, conoid sheath

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14
Q

average daily output of eggs

A

25k to 30k eggs/day

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15
Q

very helpful in identifying a particular hookworm

A

teeth

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16
Q

two fused teeth

A

ventral

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17
Q

dental plate with median cleft

A

dorsal

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18
Q

eggs hatch in 1-2 days to release what kind of larva

A

rhabditoid larva

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19
Q

diagnostic stage

A

rhabditoid larva

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20
Q

infective stage

A

filariform larva

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21
Q

5-8 days to form what kind of larva

A

filariform larva

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22
Q

buccal cavity of hookworm

A

long

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23
Q

genital primordium of hookworm

A

small/incospicuous

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24
Q

esophagus

A

short

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25
Q

tail

A

pointed

26
Q

size of male ancylostoma brasiliense

A

8 mm long

27
Q

shape of bursa

A

square

28
Q

size of female ancylostoma brasiliense

A

10mm long

29
Q

diagnostic for a.brasiliense

A

buccal capsule

30
Q

one pair of inconsipicuous median teeth

A

a.brasiliense

31
Q

produces cutaneous larva

A

ancylostoma brasiliense

32
Q

size of male (ancylostoma caninum)

A

10 mm

33
Q

size of female (ancylostoma caninum)

A

14 mm

34
Q

bursa with moderately slender rays

A

male a.caninum

35
Q

buccal capsule (a.caninum)

A

3 pairs of ventral teeth

36
Q

common parasite of dogs, causes creeping eruption

A

ancylostoma caninum

37
Q

common name for necator americanus

A

american hookworm

38
Q

does not contain any teeth but cutting plates

A

small buccal capsule

39
Q

size of necator americanus (male)

A

7-9 mm x 0.3 mm

40
Q

female size (necator americanus)

A

9.11 mm x 0.4 mm

41
Q

eggs description

A

shell very thin

42
Q

has tolerance to high temperatures

A

necator

43
Q

prevalent in low temp

A

ancylostoma

44
Q

form soil-feces mixture, favors larval development and affect overall prevalence of infection

A

dung beetle

45
Q

presence of papular lesion

A

ground itch

46
Q

also known as creeping eruption

A

cutaneous larva migrans

47
Q

most common cause for cutaneous larva migrans

A

ancylostoma brasiliense

48
Q

red then becomes elevated

A

itching papules

49
Q

scratching allows colonization of pyogenic organisms

A

pruritus

50
Q

able to infect by mouth

A

larvae of a. brasiliense/caninum

51
Q

extensive infection of larvae of brasiliense and caninum

A

pneomonitis

52
Q

crystals in the sputum

A

charcot-leyden

53
Q

syndrome cause by migrating larvae

A

wakana disease

54
Q

can be due to massive larval migration

A

pneumonitis

55
Q

low degree of sensitization

A

typical pneumonitis

56
Q

ultimate result of hookworm infection

A

microcytic, hypochromic anemia

57
Q

treatment

A

albendazole

58
Q

treatment for creeping eruption

A

thiabendazole

59
Q

treatment for wakana disease

A

adrenocorticoids

60
Q

prevention

A

sanitary disposal of human feces