Introduction to Helminths

A set of vocabulary flashcards covering key terms and definitions related to helminths and their biology.

Helminth

A parasitic worm studied in medical helminthology.

Nematoda

A phylum of roundworms characterized by elongated, cylindrical bodies.

Monoecious

Organisms that have both male and female reproductive organs in the same individual.

Dioecious

Organisms that have male and female reproductive organs in separate individuals.

Pathogenesis

The process by which a disease develops in an organism.

Cuticle

The outer protective layer that covers the body of helminths.

Morphological characteristics

The study of the structure and form of organisms, used to differentiate helminth species.

Pseudocoelom

A fluid-filled body cavity of nematodes located between the body wall and gut.

Egg embryonation

The process by which fertilized eggs develop into larvae under suitable environmental conditions.

Microfilariae

The first stage larvae of filarial worms found in the blood.

Parthenogenesis

A form of asexual reproduction where eggs develop into offspring without fertilization.

Löffler’s syndrome

A respiratory condition caused by the migration of Ascaris larvae, characterized by cough and eosinophilia.

Ascaris lumbricoides

The largest intestinal roundworm in humans, causing ascariasis.

Filariform larvae

The third stage larvae of certain nematodes, which are infective to humans.

Dracunculus medinensis

Also known as the Guinea worm; causes dracunculiasis through waterborne transmission.

Trichuris trichiura

Commonly known as whipworm, causing trichuriasis in humans.

Enterobius vermicularis

Commonly known as pinworm; causes enterobiasis in humans.

Hookworms

Intestinal parasites (Necator americanus and Ancylostoma duodenale) causing anemia by feeding on blood.

Entozoic diseases

Diseases caused by helminthic infections in humans.

Mebendazole

An antiparasitic drug used to treat helminth infections.

Zoonotic infection

Infection transmitted from animals to humans, such as trichinosis.