Intro to Hookworms/Strongyloides

Question 0

False about Ancylstoma
A.Buccal capsule armed with 4 large ventral very sharp cutting teeth
B.Some species are adapted to transmission through paratenic host- C.Development in the lungs of the final host is essential for all species
D.females bigger than males

Answer 0

C.Development in the lungs of the final host is essential for all species

Not essential dapat

Question 1

False about copulatory bursa
A.sac like expansion of anterior part B.found in all male hookworms
C.used for copulation
D.where a pair of spicules are found

Answer 1

A.sac like expansion of anterior part

Posterior dapat

Question 2

Which hookworm has a ventral pair of semilunar cutting plates at its buccal capsule?
A. Necator americanus
B. Ancylostoma duodenale
C. Both of the above
D. None of the above

Answer 2

A. Necator americanus

Question 3

Which is false?
A. Ancylostoma duodenale is slightly smaller than Necator americanus
B. Rhabditiform larvae of Ancylostoma duodenale & Necator americanus are indistinguishable
C. Both are false

Answer 3

A. Ancylostoma duodenale is slightly smaller than Necator americanus

Bigger dapat

Question 4

The buccal capsule of A.duodenale has ___

Answer 4

2 pairs of curved ventral teeth

Question 5

Infective stage of hookworm to humans

Answer 5

Filariform larva

Question 6

Main differences in filariform larvae of N.americanus & A.duodenale

Answer 6

N.americanus - conspicuous buccal spears and traverse striations @ tail
A.duodenale - inconspicuous naman

Question 7

Where do hookworm adults reside in GI tract?

Answer 7

Mucosa of small intestine

Question 8

The females deposit their eggs @ feces, then once the stool has been excreted into the soil, eggs hatch into __ after 1-2 days

Answer 8

Rhabditiform larva

Question 9

Rhabditiform larva –> ______ (after 7-10 days)

Answer 9

Filariform larva

Question 10

Hookworm filariform larva migrate into the lung before they reach the GI tract. True or false?

Answer 10

True

Question 11

Once the hookworm reaches the small intestine, it immediately becomes sexually active. True or false?

Answer 11

False. After a month pa

Question 12

Which is not a sign/symptom of hookworm penetration into skin?
A. Ground itch
B. Erythema
C. Edema
D. Muscular spasm

Answer 12

D. Muscular spasm

Question 13

Which is not a sign/symptom of hookworm lung migration?
A. Asthma
B. Bronchitis
C. Chest itchiness
D. Dry cough

Answer 13

C. Chest itchiness

Question 14

Which is not a sign/symptom of hookworm presence at small intestine?
A.abdominal pain
B.weight gain
C.iron-def anemia
D.steatorrhea

Answer 14

B.weight gain

Weight loss dapat.

Question 15

Hypoalbuminemia is a manifestation of hookworm infection. What is it, exactly?

Answer 15

Low level of albumin due to combined loss of blood,lymph and protein

Question 16

Diagnostic stage of hookworm life cycle

Answer 16

Parasite eggs in feces

Question 17

Broad-spectrum antihelminthics like __&___ are preferred in areas where nematode infections are endemic.

Answer 17

Albendazole

Mebendazole

Question 18

The ff envt factors can affect hookworm transmission except
A)damp, sandy soil with decaying vegetation
B)mode and extent of contact bet infected soil & human
C)infected soil in raw vegetables
D)none of the above

Answer 18

D)none of the above

Question 19

True or false. Ancylostoma can be transmitted through oral route

Answer 19

Yes, thru oral route via feces at raw veggies

Question 20

Cat hookworm is also known as__

Answer 20

Ancylostoma braziliense

Question 21

Dog hookworm is also known as __

Answer 21

Ancylostoma caninum

Question 22

Both cat and dog hookworm may utilize humans as accidental host. If this happens, “creeping eruption” may happen. What is another name for creeping eruption?

Answer 22

Cutanous larva migrans

Question 23

True or false. Strongyloides stercoralis has free-living filariform & parasitic rhabditiform larvae. True or false?

Answer 23

False. Free-living rhabditiform, parasitic filariform

Question 24

False about parasitic female (Strongyloides)
A. Smaller than free-living female
B. Short buccal cavity with four indistinct lips
C. Uteri length is one-third of whole body
D. With finely striated cuticle

Answer 24

A. Smaller than free-living female

Bigger dapat

Question 25

False about parasitic female (Strongyloides)
A. Smaller than free-living
B. Muscular double-bulbed esophagus
C. Uteri length is two-thirds of whole body
D. None of the above

Answer 25

C. Uteri length is two-third of whole bodh

One-third lang.