Nematodes

Question 1

all the male nematode has coiled or curved posterior except

Answer 1

HOOKWORK (widen fan-like)

Question 2

appearance of female posterior/tail

Answer 2

always pointed

Question 3

composition of cortical layer

Answer 3

cuticulin and collagen

Question 4

2 types of somatic musculature

Answer 4

platymyarian & coelomyarian

Question 5

all the visceral including the digestive, excretory, and reproductive system are suspended in body cavity known as

Answer 5

pseduocele/pseudocoelum

Question 6

fluid of pseudocele is known as ____ which contains __, ___, ___. ___, __

Answer 6

hemolymph –hemoglobin, glucose, protein, salt, vitamins

Question 7

layers of unfertilized ascaris ova

Answer 7

albuminous layer only

Question 8

layers of fertilized ascaris ova

Answer 8

vitelline membrane
glycogen membrane
albuminous membrane

Question 9

diagnostic feature of ascaris which found in the anterior

Answer 9

3 trilobite

Question 10

common pathological manifestation brought by capillaria philippinensis

Answer 10

borborygmi/gurgling stomach

Question 11

the smallest hookworm is a parasite of

a. human
b. dog
c. cat
d. fish

Answer 11

cat - A. ceylanicum

Question 12

a hookworm that secrets anticoagulant in blood that cause delay in the coagulation of blood

Answer 12

A. caninum (dog)

Question 13

a hookworm that has a buccal cavity with 3 pairs of ventral teeth

Answer 13

a. caninum

Question 14

describe the teeth of A. braziliense

Answer 14

pair of large teeth and pair of inconspicuous median teeth

Question 15

common parasite of pig

Answer 15

trichinella spiralis

Question 16

the male of the trichinella spiralis is identified by what characteristic of its tail end

Answer 16

conical papillae

Question 17

gastrointestinal disturbances in T. spiralis is caused by what stage of the parasite

Answer 17

adult female

Question 18

larva migrans of t. spiralis can cause what pathological manifestation

a. muscle pain
b. eosinophilia
c. muscular pain
d. headache

Answer 18

eosinophilia (allergic manifestation), fever, edema

Question 19

marked as the beginning of encapsulation of encysted larvae

Answer 19

convalescence phase

Question 20

how many days intestinal phase would appear

Answer 20

1-2days

Question 21

muscle invasion phase seen during what no. of days

Answer 21

7-11 days

Question 22

rat lung worm is the common name of what species

Answer 22

angiostrongylus cantonensis

Question 23

adult female of A. cantonensis is characterized as

a. kidney shaped
b. barber’s pole
c. delicate hyaline

Answer 23

barber’s pole - looping of milky white uterine tubules

Question 24

male adult of A. cantonensis is characterized as

Answer 24

kidney-shaped caudal bursa

Question 25

intermediate host of A. cantonensis

Answer 25

achanita fulica (snail) fresh water prawns water and vegetables

Question 26

pathological manifestation of A. cantonensis which begins w/ the onset severe headache with neck rigidity

Answer 26

eiosinophilic meningioencephalitis

Question 27

the common organ where A. cantonensis migrate in human

Answer 27

CNS/BRAIN

Question 28

longest nematode

Answer 28

Dracunculus medinensis

Question 29

habitat of D. medinensis

Answer 29

subcutaneous tissue (foot/lower limb)

Question 30

female of D. medinensis is characterized as

Answer 30

milky white. slender; thick twine of thread looking

Question 31

tad-pole like movement is present in what stage of D. medinensis

Answer 31

First-stage larva

Question 32

Infective stage of D. medinesis

Answer 32

L3 (but not pathogenic)

Question 33

OBSERVATION OF typical ulcer & FLOODING ULCER is applicable as diagnostic for

Answer 33

D. medinensis

Question 34

what type of female adult do filarial worms have

Answer 34

vivivparous

Question 35

D. medinensis intermediate host: definitive host: infective stage:

Answer 35

cyclops human L3

Question 36

``` filarial worms intermediate host: definitve host: infective stage in IH: infective stage in FH: ```

Answer 36

mosquito human microfilaria L3 filiform larva

Question 37

river blindness is caused by

Answer 37

onchocerca volvulus (convulated filaria)

Question 38

the white, transparent, and opalescent with distinct transverse striations of the cuticula is seen in what stage of O. volvulus

Answer 38

ADULT

Question 39

Microfilaria of O. volvulus is found in

Answer 39

lymphatics of CT and cutaneous layer | stratum germinativum and corneal conjunctiva

Question 40

O. volvulus intermediate host: definitive host:

Answer 40

simulium (black fly) | human

Question 41

dipetalonemiasis is caused by

Answer 41

mansonella perstans