Seta (plural: setae) is a biological term derived from the Latin word for "bristle". Foundations of modern biology There are five unifying principles Latin ( lingua Latīna, laˈtiːna is an Italic language, historically spoken in Latium and Ancient Rome. A bristle is a stiff Hair or Feather. Also used are synthetic materials such as nylon or straw in items such as brooms and sweepers It refers to a number of different bristle- or hair-like structures on living organisms.
Animal setae
In zoology, most "setae" occur in invertebrates. Uroplatus is a Genus of Geckos commonly referred to as Flat or Leaf-tailed Geckos. Geckos are small to average sized Lizards belonging to the family Gekkonidae which are found in warm climates throughout the world Zoology (from Greek ζῷον, zoon, "animal" + λόγος, " Logos " "knowledge" is the branch of An invertebrate is an Animal lacking a Vertebral column. The group includes 98% of all animal Species — all animals except those in the Chordate
- Setae in annelids are stiff bristles present on the body. The annelids, collectively called Annelida (from Latin anellus "little ring" are a large phylum of Animals comprising They help for example earthworms to attach to the surface and prevent backsliding during peristaltic motion. Earthworm is the usual name for the largest members of Oligochaeta (which is either a class or subclass depending on the author in the phylum Annelida In classical In the Esophagus After food is chewed into a bolus it is swallowed to move it into the esophagus These hairs are what make it difficult to pull a worm straight from the ground. Setae in polychaetes (a group including earthworms) are largely composed of chitin. The Polychaeta or polychaetes are a class of Annelid worms generally marine Chitin ( C 8 H 13 O 5 N)n (ˈkaɪtən is a long-chain Polymer of a N-acetylglucosamine [1]
- Setae on the legs of krill and other small crustaceans help them to gather phytoplankton. Krill are a type of Shrimp -like marine Invertebrate animal These small Crustaceans are important organisms of the Zooplankton, particularly Structure of crustaceans As Arthropods crustaceans have a stiff Exoskeleton, which must be shed to allow the animal to grow ( Ecdysis or molting Phytoplankton are the Autotrophic component of the Plankton community
- Setae on gecko footpads are small hair-like processes responsible for the animal's ability to cling to vertical surfaces. Geckos are small to average sized Lizards belonging to the family Gekkonidae which are found in warm climates throughout the world In Anatomy, a process ( Latin: processus) is a projection or outgrowth of tissue from a larger body
Plant setae
In botany, "seta" refers to the stalk supporting the capsule of a moss, hornwort or liverwort, and supplying it with nutrients. Botany, plant science(s, phytology, or plant biology is a branch of Biology and is the scientific study of plant Life A sporangium (pl sporangia) is a Plant or fungal structure producing and containing Spores Sporangia occur in angiosperms, Mosses are small soft Plants that are typically 1–10 cm (0 This is an article about the non-vascular plants The name Hornwort is also often applied to an aquatic plant Ceratophyllum demersum in the family Ceratophyllaceae The seta has a short foot embedded in the gametophyte from which it grows. In Plants and Algae that undergo Alternation of generations, a gametophyte is the multicellular structure or phase that is Haploid, containing Setae are not present in all mosses, but in some species they may reach 15 to 20 centimeters in height. In Biology, a species is one of the basic units of Biological classification and a Taxonomic rank. [2]
Artificial setae
The development of adhesives that detach at will yet display substantial stickiness is of great importance for various technological fields. [3] [4]
See also
References
- ^ Hyman, H. A chaeta or cheta (see spelling differences) is a Chitinous bristle or Seta found on Annelid worms such as the Earthworm Synthetic setae emulate the Setae found on the toes of a Gecko and scientific research in this area is driven towards the development of Dry adhesives Geckos The Van der Waals equation is an Equation of state that can be derived from a special form of the potential between a pair of molecules (hard-sphere repulsion L. (1966) "Further Notes on the Occurrence of Chitin in Invertebrates" Biological Bulletin, 130: 1-149. http://www.biolbull.org/cgi/reprint/130/1/94.pdf
- ^ Raven, Peter H.; Evert, R. Peter Hamilton Raven (b June 13, 1936) is a Botanist and Environmentalist, notable as the longtime director of the Missouri Botanical F. & Eichhorn, S. E. (2005): Biology of Plants (7th ed. ). W. H. Freeman and Company.
- ^ create new adhesive that mimicks gecko toe hairs
- ^ Setae Research
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