Secernentea
Secernentea
Secernentea (pronunciation: /sɪˌkɜːrnɛnˈtiːə/) is a class of nematodes that includes a vast number of species, many of which are parasitic.
Etymology
The term "Secernentea" is derived from the Latin word "secernere", which means "to separate". This is in reference to the separate excretory glands found in these nematodes.
Description
Secernentea are characterized by their separate excretory glands, a feature that distinguishes them from the other major class of nematodes, the Adenophorea. They also have a specialized feeding structure known as a stomatostylet, which they use to pierce plant or animal tissue and extract nutrients.
Classification
Secernentea is divided into several orders, including Rhabditida, Strongylida, Spirurida, and Tylenchida. These orders encompass a wide range of species, from free-living nematodes found in soil and water to parasitic species that infect plants and animals.
Medical Relevance
Several species of Secernentea are of medical importance due to their role as parasites. For example, species in the order Strongylida can cause strongyloidiasis, a type of parasitic infection in humans. Similarly, species in the order Spirurida can cause diseases such as filariasis and onchocerciasis.
Related Terms
- Nematoda: The phylum to which Secernentea belongs.
- Adenophorea: The other major class of nematodes.
- Stomatostylet: A feeding structure found in Secernentea.
- Rhabditida: An order of Secernentea.
- Strongylida: An order of Secernentea.
- Spirurida: An order of Secernentea.
- Tylenchida: An order of Secernentea.
- Strongyloidiasis: A disease caused by species in the order Strongylida.
- Filariasis: A disease caused by species in the order Spirurida.
- Onchocerciasis: A disease caused by species in the order Spirurida.
External links
- Medical encyclopedia article on Secernentea
- Wikipedia's article - Secernentea
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