Enterobius vermicularis

Question 1

What is the common name of Enterobius vermicularis and Most common parasite in the world; most common helminth infection (US)?

Answer 1

> Enterobius vermicularis

Question 2

Intense itchiness of sigmoid muscle of anus.

Answer 2

> Pruritis ani

Question 3

Defined in Pinworm specific terms;
an indication as infective Pinworm eggs that migrate back into the host body developed and reproduce.

Answer 3

> Retroinfection

Question 4

If the infective pinworm eggs are ingested via hand-to-mouth contamination

Answer 4

> Autoinfection

Question 5

Give the 2 laboratory diagnosis for Enterobius vermicularis

Answer 5

1. Perianal swab or
   Scotch Tape swab
2. Fingernail Scrapings

Question 6

Colorless, Lopsided or D-shaped (flattened on one side], With larva inside the ova, [ovoviparus], (Embryonated), Outer thick-walled shell

Answer 6

> Ova Morphology

Question 7

Cervicalalae [cephalic allae/papillae/ fun-like appearance]

Answer 7

> Male and Female anterior

Question 8

_________ One third curved
_________ Straight

Answer 8

1. Male posterior
2. Female posterior

Question 9

Double bulb esophagus and Eggs in uterus

Answer 9

> Female

Question 10

Give the Enterobius vermicularis LIFE CYCLE

Answer 10

It is initiated by in the ingestion of embryonated ova —— Eggs hatch in the small intestine to become larvae —— It matures into an adult worm in the large intestine. After copulation, the nocturnal gravid female worm migrates to the perianal region