Lecture on Clinical Parasitology and Mycology - Nematodes (Roundworms)

These flashcards cover key vocabulary and concepts related to nematodes in clinical parasitology and mycology.

Trichinella spiralis

The organism commonly known as the pork roundworm.

Trichuris trichiura

The organism commonly known as the whipworm.

Viviparous

A reproductive mode where the organism gives live birth instead of laying eggs.

Free-living

An organism that exists in the environment without being a parasite to humans or other hosts.

Sylvatic trichinosis

A form of trichinosis that exists in natural animal populations and not in the human environment.

Urban trichinosis

A form of trichinosis that occurs in human environments.

Nematodes

Roundworms that can have free-living and parasitic forms.

Homogonic life cycle

A reproductive strategy in which the life cycle involves only parasitic forms.

Heterogonic life cycle

A life cycle that alternates between free-living and parasitic stages.

Ascaris lumbricoides

Commonly known as the large roundworm of humans.

Enterobius vermicularis

The organism commonly referred to as the pinworm.

Rhabditiform larvae

A juvenile form of Strongyloides stercoralis that is non-infective.

Filariform larvae

A juvenile form of Strongyloides stercoralis that is infective.

Juvenile or first stage larva

The larval stages of nematodes, designated as L1 to L4.

Cloaca

A chamber that opens into the anus, genital ducts, and urinary ducts in male nematodes.

Cuticle

A protective outer covering of nematodes.

Hypodermis

Layer that secretes the cuticle in nematodes.

Mouth

The opening through which nematodes ingest food.

Buccal cavity

The cavity that leads to the esophagus in nematodes.

Internal fertilization

The process by which fertilization occurs inside the female body, typical in nematodes.