Nematodes

Definition

Nematodes are a diverse group of roundworms that can infect the gastrointestinal tract, causing various diseases. They are one of the most common helminths affecting human health.

5 Must Know Facts For Your Next Test

1. Nematodes include species such as Ascaris lumbricoides, hookworms, and whipworms.
2. Transmission often occurs through ingestion of contaminated food or water, or direct contact with infected soil.
3. Symptoms of nematode infections can include abdominal pain, diarrhea, and malnutrition.
4. Diagnosis is typically made by identifying eggs or larvae in stool samples.
5. Treatment usually involves antiparasitic medications such as albendazole or mebendazole.

Review Questions

• What are some common species of nematodes that infect the human gastrointestinal tract?
• How are nematode infections typically transmitted?
• What are common methods used to diagnose nematode infections?

Related terms

Helminth: A broad category of parasitic worms including nematodes, cestodes, and trematodes.

Ascariasis:

An infection caused by the nematode Ascaris lumbricoides.

Antiparasitic Medication: Drugs used to treat parasitic infections such as those caused by nematodes.