Nematode (Phasmidea)

Question 1

most common intestinal roundworm

Answer 1

Ascaris lumbricoides

Question 2

infective stage of ascaris lumbricoides

Answer 2

embryonated ova

Question 3

common name of ascaris lumbricoides

Answer 3

giant intestinal roundworm

Question 4

what is the definitive host of the ascaris lumbricoides?

Answer 4

no intermediate host needed

Question 5

main habitat of ascaris lumbricoides

Answer 5

Lumen of the small intestine

Question 6

2 types of ova in ascaris lumbricoides

Answer 6

unfertilized & fertilized

Question 7

it has longer and narrower

Answer 7

unfertilized

Question 8

it has broadly ovoidal and thick

Answer 8

fertilized

Question 9

2 layers of the egg shell in an unfertilized ova/eggs

Answer 9

1. albuminoid layer
2. chorionic layer or true shell

Question 10

3 layers of fertilized ova/eggs

Answer 10

1. chorionic / true shell
2. vitelline layer
3. protein coat

Question 11

same as fertilized but contains the larva of the embryo

Answer 11

embryonated

Question 12

lacks the albuminous mamillated shell, usually seen in old specimen and may be fertilized or unfertilized

Answer 12

decorticated

Question 13

describe the adult of ascaris lumbricoides

Answer 13

1. white, creamy or pinkish yellow
2. head is provided with 3 conspicuous lips
3. each lip has minute twinned sensory papillae

Question 14

give the 3 diseases under ascaris lumbricoides

Answer 14

ascariasis, dooryard or backyard infection

Question 15

give at least 3 preventions for ascariasis

Answer 15

1. personal hygiene
2. avoid using night soil fertilizer
3. cooking food properly

Question 16

this process facilitates the recovery of eggs for the intestinal parasites

Answer 16

Kato Katz Technique

Question 17

give 5 example of intestinal parasites

Answer 17

1. ascaris lumbricoides
2. trichuris trichiura
3. hookworm
4. schistosoma mansoni
5. schistosoma japanicum

Question 18

used for estimating the amount of worms and determine the severity of the infection

Answer 18

kato katz technique

Question 19

what are the 3 kinds of human hookworms?

Answer 19

1. Necator americanus
2. Ancylostoma duodenale
3. Ancylostoma ceylanicum

Question 20

what are the 2 animal hookworms?

Answer 20

1. ancylostoma braziliense
2. ancylostoma caninum

Question 21

what are the 3 developmental stage of hookworms?

Answer 21

1. ova
2. rhabditiform larva
3. filariform larva

Question 22

among the 3 developmental stage of hookworms, which is considered as an infective stage?

Answer 22

filariform larva

Question 23

which developmental stage in hookworms that has long narrow buccal cavity?

Answer 23

rhabtidiform larva

Question 24

it has 1 pair of semilunar cutting plates, dorsal median tooth, deep pair of triangular subventral lancets

Answer 24

Necator americanus

Question 25

it has 2 pairs of fused ventral teeth

Answer 25

Ancylostoma duodenale

Question 26

3 pairs of ventral teeth

Answer 26

Ancylostoma caninum

Question 27

1 pair of larger outer teeth and 1 pair of very inconspicuous median teeth

Answer 27

Ancylostoma braziliense

Question 28

what are the three diseases under hookworms?

Answer 28

1. Necatoriasis 2. Ucinariasis 3. Anyclostomiasis

Question 29

what are the three larval stage (hookworms)?

Answer 29

1. ground itch 2. creeping eruption 3. pulmonary lesions

Question 30

among the three larval stage of hookworms, which has a Wakana disease?

Answer 30

pulmonary lesions