Seta
Seta
Seta (pronunciation: /ˈsiːtə/; plural: setae) is a term used in the field of biology to refer to a stiff, hair-like structure found on the body of some animals, particularly invertebrates. The term is derived from the Latin word "seta", meaning "bristle" or "hair".
Etymology
The term "seta" is derived from the Latin word "seta", which translates to "bristle" or "hair". It was first used in the biological context in the 18th century to describe the hair-like structures observed on the bodies of certain invertebrates.
Usage in Biology
In biology, a seta is a stiff, hair-like structure that can be found on the bodies of certain animals, particularly invertebrates such as annelids (segmented worms), arthropods (insects, spiders, and crustaceans), and mollusks (snails, clams, and octopuses). Setae serve various functions depending on the species, including locomotion, sensing the environment, and defense against predators.
Related Terms
- Annelids: A phylum of segmented worms, including earthworms and leeches, which possess setae.
- Arthropods: A phylum of invertebrates, including insects, spiders, and crustaceans, which often have setae.
- Mollusks: A phylum of invertebrates, including snails, clams, and octopuses, some of which have setae.
- Locomotion: The movement or ability to move from one place to another, a function that setae can serve in certain species.
- Sensory perception: The process of receiving and interpreting sensory information, a function that setae can serve in certain species.
External links
- Medical encyclopedia article on Seta
- Wikipedia's article - Seta
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