NEMATODES - Ascaris lumbricoides, Trichuris trichiura

Question 1

cylindrical or tubular-shaped (roundworms)

Answer 1

nematodes

Question 2

segmented (tapeworms)

Answer 2

cestodes

Question 3

unsegmented (flukes)

Answer 3

trematodes

Question 4

well-developed/complete systems present in nematodes

Answer 4

reproductive system
digestive system

Question 5

term used to explain nematodes having 2 separaye sexes (male and female)

Answer 5

dioecious

Question 6

hermaphrodites or monoecious (1 worm = has both m and f reproductive organs)

Answer 6

cestodes and trematodes

Question 7

produced by the hypodermis/epidermis that protects nematodes from gastric acid and digestive enzyme

Answer 7

cuticle

Question 8

tapered - end; rounded - end of nematodes

Answer 8

posterior, anterior

Question 9

layer found below epidermis, contracts

Answer 9

longitudinal muscle

Question 10

> 6 muscles per quadrant

Answer 10

polymyarian

Question 11

3-5 muscles per quadrant

Answer 11

meromyarian

Question 12

1-2 muscles per quandrant

Answer 12

holomyarian

Question 13

fluid-filled body cavity that functions to transport the nutrients absorbed from the intestine

Answer 13

pseudocoelom

Question 14

group of nerve found around the pharynx; brain of the nematode

Answer 14

nerve ganglion/circumoral brain

Question 15

4 brances of nerve arising the nerve ganglion

Answer 15

1 ventral nerve
1 dorsal nerve
2 lateral nerves

Question 16

controls/branches to the dorsal and ventral nerve cords

Answer 16

muscles

Question 17

chemoreceptors

cuticular depressions present on the lipds surrounding the mouth found ANTERIORLY

Answer 17

amphids

Question 18

chemoreceptors - posterior

Answer 18

phasmid

Question 19

nematodes habitats in humans - SMALL INTESTINE

Answer 19

(CHATS)

Capillaria philippinensis
Hookworm
Ascaris lumbricoides
Trichinella spiralis
Strogyloides stercoralis

Question 20

nematodes habitats in humans - LARGE INTESTINE

Answer 20

Trichuris trichiura
Enterobius vermicularis

Question 21

aphasmids

Answer 21

Capillaria philippinensis
Trichinella spiralis
Trichuris trichiura

Question 22

Ascaris lumbricoides

holomyarian
meromyarian
polymyarian

Answer 22

polymyarian

Question 23

A. lumbricoides: definitive host

Answer 23

human

Question 24

A. lumbricoides: diagnostic stage

Answer 24

Unembryonated egg

Question 25

A. lumbricoides: infective stage

Answer 25

embryonated egg

Question 26

A. lumbricoides: organs affected

Answer 26

lungs small intestine

Question 27

embryonation duration for a. lumbricoides

Answer 27

3 weeks in the soil

Question 28

A. lumbricoides: diagnostic specimen

Answer 28

stool sample

Question 29

A. lumbricoides: mode of transmission

Answer 29

ingestion of embryonated ovum (soil-transmitted)

Question 30

A. lumbricoides: autoinfection?

Answer 30

no

Question 31

3 layers of ascaris ova

Answer 31

vitelline (innermost) chitin (thick) mammaliated albuminous coat

Question 32

mammaliated albuminous coat is present; rough outer layer

Answer 32

corticated

Question 33

absent mammaliated albuminous coat; smooth outer layer

Answer 33

decorticated

Question 34

pharynx 3 groups of muscle is called

Answer 34

triradiate pharynx

Question 35

triradiate pharynx

Answer 35

2 ventral lips 1 dorsal lip

Question 36

a disease in which eosinophils accumulate in the lungs in response to a parasitic infection

Answer 36

loeffler's syndrome

Question 37

A. lumbricoides: severe infection can cause

Answer 37

intestinal obstruction (most common) intussusception volvulus

Question 38

treatment for A. lumbricoides

Answer 38

albendazole mebendazole pyrantel pamoate

Question 39

A. lumbricoides treatment: blocks the action of acetylcholine = parasite paralysis

Answer 39

pyrantel pamoate

Question 40

A. lumbricoides treatment: inihibits formation of microtubule = leads to parasite starvation - death

Answer 40

albendazole + mebendazole = benzimidazole

Question 41

T. trichiura: infective stage

Answer 41

embryonated egg

Question 42

T. trichiura: diagnostic stage

Answer 42

unembryonated egg

Question 43

ture or false: patient w Trichuriasis will have pulmonary symptoms

Answer 43

false; T. trichiura does not have larva-lung migration

Question 44

whipworm

Answer 44

T. trichiura

Question 45

T. trichiura: describe anterior and posterior ends

Answer 45

THIN - anterior THICK - posterior

Question 46

allows T. trichiura anterior head to embed in the intestinal walls

Answer 46

TT47

Question 47

the presence of Trichuris will worsen this kind of parasite-related disease

Answer 47

amebiasis

Question 48

caused by severe infection of Trichuris

Answer 48

rectal prolapse

Question 49

T. trichiura: autoinfection ?

Answer 49

no

Question 50

describe the egg shape of T. trichiura

Answer 50

football-shaped, japanese lantern-shaped w prominent bipolar plugs

Question 51

drug of choice for T. trichiura

Answer 51

mebendazole

Question 52

alternative drug of choice for T. trichiura

Answer 52

albendazole

Question 53

A. lumbricoides or T. trichiura: patient suffers from rectal prolapse

Answer 53

trichuris trichiura

Question 54

A. lumbricoides or T. trichiura: pateint suffers from blood-streak tool which eventually leads to anemia

Answer 54

T. trichiura

Question 55

A. lumbricoides or T. trichiura: patient suffers from abdominal and pulmonary symptoms

Answer 55

A. lumbricoides

Question 56

A. lumbricoides or T. trichiura: enterorrhagia (intestinal bleeding)

Answer 56

T. trichiura

Question 57

A. lumbricoides or T. trichiura: lactose intolerance

Answer 57

A. lumbricoides

Question 58

A. lumbricoides or T. trichiura: vitamin A deficiency

Answer 58

A. lumbricoides

Question 59

A. lumbricoides or T. trichiura: requires regular deworming

Answer 59

A. lumbricoides

Question 60

A. lumbricoides or T. trichiura: petecchial hemorrhages

Answer 60

T. trichiura