PHASMID II (STRONGYLOIDES, NECATOR AMERICANUS, ANCYCLOSTOMA DUODENALE)

Question 1

PHASMID 1

COMMONNAME : Threadworm; can also be E. Vernicularis

Strongyloides

Habitat: Intestines (_______)
Mode of Entry: ______

Answer 1

Strongyloides stercolaris
Habitat (Duodenum)
Mode of Entry: skin

Question 2

STRONGYLOIDES
FILARIFORM FEMALE
4. ________ end and short ______
5. buccal cavity has ____ distinct lips
9. uteri contained _______ shelled transparent segmented ovary

Answer 2

slender tapering anterior end and 4 distinct lips
single file of 8-12 thin shelled transparent segmented ovary

Question 3

STRONGYLOIDES
FREE LIVING FEMALE (SOIL_
2. _______ esophagus and intestine in straight and cylindrical

FREE LIVING MALE (SOIL)
2. ventrally _______ tail

Answer 3

Female: double bulb esophagus
Male: curved tail

Question 4

STRONGYLOIDES
L1:
buccal capsule: ____
genital: _____

L3:
esophagus: _____
tail end: ___

both hookworm and strongyloides are _______

Answer 4

L1: buccal capsule is short, genital primordium is prominent

L3: esophagus is longer, tail end is notched

both sheathed

Question 5

STRONGYLOIDES
INFECTIVE STAGE:
DIAGNOSTIC STAGE:
AUTOINFECTIONS:

Answer 5

Filariform L3
Rhabditiform L1-2

Autoinfections: Filariform (L3) transforms to Rhabditidorm L1-2

Question 6

STRONGYLOIDES
4. moderate infections - ________________
5. Heavy infections _______

Answer 6

diarrhea and constipation

cochin china diarrhea

Question 7

NECATOR : _______
ACYCLOSTOMA: PERCUTANEOUS AND ________

Answer 7

Percutaneous

Percutaneous and oral