Spirurida
Spirurida
Spirurida (pronounced: spi-ru-ri-da) is a large order of parasitic nematodes that includes several significant pathogens of humans and domestic animals.
Etymology
The term "Spirurida" is derived from the Latin "spira" meaning "spiral" and "urida" meaning "tail". This is in reference to the characteristic spirally coiled tail seen in males of this order.
Description
Spirurida are characterized by their complex life cycles, which often involve arthropod intermediate hosts. The adult worms are typically found in the gastrointestinal tract, but some species can also inhabit the circulatory system, body cavities, and tissues of their hosts.
Notable Species
Some notable species within the order Spirurida include:
- Brugia malayi - a causative agent of lymphatic filariasis in humans.
- Onchocerca volvulus - the causative agent of river blindness.
- Dracunculus medinensis - the causative agent of dracunculiasis, also known as Guinea worm disease.
Related Terms
- Nematode - a phylum of worms to which Spirurida belong.
- Parasitism - the relationship between the Spirurida and their hosts.
- Arthropod - the group of animals that often serve as intermediate hosts for Spirurida.
See Also
External links
- Medical encyclopedia article on Spirurida
- Wikipedia's article - Spirurida
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