.

Question 1

General morphology: Unsegmented, elongated and cylindrical in shape. The body is covered by a non-nucleated cuticle which may be smooth striated, bossed or ornamented with spines

Answer 1

PHYLUM NEMATODA

Question 2

Body cavity of phylum nematoda is called?

Answer 2

Pseudocole

Question 3

Contains the viscera (digestive, reproductive and parts of the nervous and excretory systems)

Answer 3

Pseudocole

Question 4

mouth/buccal cavity which may be provided with spines, hooks, cutting plates, stylets, or other structures

Answer 4

Anyterior end

Question 5

Malw: accessory copulatory apparatus

Answer 5

gubernaculum (wing- like appendage)
 telamon
 copulatory spicule
 copulatory bursa (umbrella like ex:
Hookworms)

Question 6

Spines, hooks, cutting plates and teeth

Answer 6

Digestive system; buccal cavity

Question 7

What consist the Esophagus?

Answer 7

filariform, rhabditiform, spiruroid, strongyliform or
stichosoma

Question 8

System with chemoreceptors?

Answer 8

Nervous system

Question 9

excitatory neurotransmitter

Answer 9

Acetyl choline

Question 10

inhibitory
neurotransmitter

Answer 10

Gamma-amino butyric acid

Question 11

Most nematocidal drugs interfere with

Answer 11

Neurotransmission

Question 12

pair of laterally placed minute receptor organs in the cephalic or cervical region of all nematodes.

Answer 12

Amphids

Question 13

pair of minute lateral post-anal organs in species w/o caudal glands

Answer 13

Phasmid

Question 14

Releases toxic substances with collecting tubules or collecting canal & an excretory pore

Answer 14

Excretory system

Question 15

Since there in no circulatory system, what does this fluid in the body of nematodes consist of!

Answer 15

hemoglobin, glucose, proteins, salts and vitamins

Question 16

What systemsdoes nematodes doesnt have

Answer 16

Circulatory and reproductive system

Question 17

What are the developmental stages

Answer 17

1) egg stage
2) four larval stages 3) adult stage

Question 18

T. trichiura mode of attachment

Answer 18

Anchorage with attenuated end

Question 19

Mode of attachment: Ancylostoma

Answer 19

Oral attachment to the mucos

Question 20

Mode of attachment: Strongyloides

Answer 20

Penetration of the tissues

Question 21

lumcricoides

Answer 21

Retention in the folds of the mucosa

Question 22

Life span: Trichinella spiralis:

Answer 22

4-16 weeks

Question 23

Life span: Enterobius vermicularis

Answer 23

1-2 months

Question 24

Life span! lumbricoides

Answer 24

12 – 17 months

Question 25

LS: hookworms

Answer 25

At least 14 years

Question 26

LS: Filarial worms:

Answer 26

Up to 25 years

Question 27

Ls: T. trichiura

Answer 27

5-10 years

Question 28

Ls: S. stercoralis

Answer 28

20-30 years

Question 29

Nematodes egg layers for ascaris and trichuris

Answer 29

Vitelline membrane Chorionic or true shell Albuminous covering

Question 30

Four larval stage

Answer 30

o L1 o L2 o L3 o L4

Question 31

lack “Phasmids” or without caudal chemoreceptors

Answer 31

Aphasmid

Question 32

Aphasmid; SPECIES WHICH PARASITIZE THE SMALL INTESTINE

Answer 32

Trichinella spiralis Capillaria philippinensis

Question 33

Aphasmid; SPECIES WHICH PARASITIZE THE LARGE INTESTINE

Answer 33

Trichuris trichuria

Question 34

with “Phasmids”; with caudal receptor

Answer 34

Phasmis

Question 35

Phasmid: SPECIES WHICH PARASITIZE THE SMALL INTESTINE

Answer 35

 Ascaris lumbricoides  Necator americanus  Ancylostoma duodenale  Ancylostoma ceylanicum  Strongyloides stercoralis

Question 36

Phasmid: . SPECIE WHICH PARASITIZE THE LARGE INTESTINE

Answer 36

Enterobius vermicularis

Question 37

Phasmid: SPECIES WHICH PARASITIZE THE TISSUES

Answer 37

 Wuchereria bancrofti  Brugia malayi  Loa loa  Dracunculus medinensis

Question 38

Phasmid; SPECIES WHICH CAUSES LARVA MIGRANS IN MAN

Answer 38

 Ancylostima braziliense  Ancylostoma caninum  Toxocara spp.

Question 39

On ova of a parasite that has a smaller or striated shells

Answer 39

Capillaria philippinensis

Question 40

Ova that has flattened plugs?

Answer 40

Capillaria philippinensis

Question 41

Peanut shaped ova?

Answer 41

Capillaria philippinensis

Question 42

Passed in the feces and embryonate in the soil or water and they must reach the water in order to be ingested by small species of fresh water or brackish water fish

Answer 42

Capillaria philippinensis

Question 43

Main habitat:  Large Intestines & Small Intestines

Answer 43

Capillaria philippinensis

Question 44

Diagnostic Stage: Fertilized Ova

Answer 44

Capillaria philippinensis

Question 45

 Death: 2 – 8 weeks after these are seen

Answer 45

C. Philippinensis

Question 46

It can cause low electrolyte level specifically the potassium and there are high levels of IgE during capillariasis

Answer 46

C. philippinensis

Question 47

posterior end: ventrally curved with two lobular caudal appendages

Answer 47

Trichinella spiralis male

Question 48

it has a single testis located near the posterior part of the body Joined in the mid-body by the genital tube which extends up

Answer 48

Trichinella spiralis

Question 49

Has a pair of caudal appendages and two pairs of papilla

Answer 49

Cloaca