Nematology Lecture Review Flashcards

15 question-and-answer flashcards covering general characteristics, life cycles, diagnostics, and symptoms of various nematodes based on the lecture notes.

What is the characteristic feature of the head of an adult Ascaris lumbricoides?

The head is provided with 3 lips and a triangular buccal cavity, referred to as "Trilobate lips."

Which nematode is known as the smallest nematode infecting man and can be a free-living organism?

Strongyloides stercoralis

What is the infective stage of hookworms like Ancylostoma duodenale and Necator americanus?

$L3$/Filariform Larva (Sheathed)

Which diagnostic method is specifically used to detect the eggs of Enterobius vermicularis?

Scotch tape swab/Cellulose tape swab

Describe the appearance of a Trichuris trichiura egg.

Barrel-shaped (football-shaped) with bipolar mucus plugs and a prominent hyaline polar plug, resembling a Japanese Lantern.

What is the common name of Capillaria philippinensis and where was it discovered?

Pudoc worm; discovered in Pudoc, Ilocos Sur.

In the context of Trichinella spiralis, what is the term for the striated muscle cell that surrounds the coiled larva?

Nurse cell

What are the two common names for Dracunculus medinensis?

Guinea worm or Fiery serpent of the Israelites

What specific type of anemia is associated with chronic blood loss from a hookworm infection?

Iron Deficiency Anemia (Microcytic Hypochromic Anemia)

Which filarial worm is known as the "Blinding worm" and causes river blindness?

Onchocerca volvulus

What is the term for the peculiar abdominal gurgling sound associated with Capillaria philippinensis infection?

Borborygmi

Which nematode infection is characterized by "Larva Currens" tracks under the skin?

Strongyloides stercoralis

What does the acronym WASHED stand for in the framework for STH prevention and control?

Water, Sanitation, Hygiene, Education, Deworming

Which nematode is classified as viviparous (lays larvae instead of eggs) and has no egg stage in its life cycle?

Trichinella spiralis

What is the vector for the Malayan Filarial worm (Brugia malayi)?

Mansonia sp. or Anopheles mosquito