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Furca (carrying Pole)
Furca (Latin for "fork"), plural forms furcae or furcas, or its diminutive, furcula, may refer to: Biology * ''Furca'' (genus), a prehistoric arthropod * Furca (springtail), an anatomical structure in springtail entognaths. * Caudal furca ("tail fork"), part of the telson of some crustaceans *Furcula, the wishbone of birds and some dinosaurs * ''Furcula'' (moth) a genus of Noctuid moths * Any small forked structure of animal anatomy Other uses *Forked cross, a cross in Gothic architecture * Furca (punishment), a cross-like instrument for punishment * Furcas, a demonic mythological character *''Furca'', a carrying pole for the sarcina The ''sarcina'' was the marching pack carried by Roman legionaries, the heavy infantry of the Roman legions. Most of a legionary's equipment other than his arms and armour would, in early times, have been consigned to a baggage train and b ... of Roman legionaries See also * Fork (other) {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Furca (genus)
''Furca'' (Latin for "fork") is an extinct genus of marrellomorph arthropod known from the Sandbian stage (upper Ordovician period) of the Czech Republic, with a single currently described species, ''Furca bohemica''. A tentative additional species, "Furca mauretanica": was proposed for specimens discovered in Morocco, but this species remains a ''nomen nudum'' until formally published, and probably belongs in a new separate genus. Description ''Furca'' is characterized by a broad head shield with three pairs of prominent spines: front (anterolateral), side (mediolateral) and rear (posterolateral). The head shield of ''Furca'' ranged from long and at maximum width. The mediolateral spines are long and strongly curved. The outline of the head shield possess a fringe of small, gently curving secondary spines, between long. Appendages are unknown from fossils. Paleobiology ''Furca'' fossils have been found in sediments indicative of shallow marine habitats. Since appendages an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Furcula (springtail)
The furcula, or furca It is a forked, tail-like appendage. It is present in most species of springtails, and in them it is attached ventrally to the fourth abdominal segment. The organ most often is present in species of ''Collembola'' that lives in the upper soil layers where it is used for jumping to avoid predators. While at rest, it is retracted under the abdomen and held there by a structure variously called the retinaculum or hamula, which in turn is located beneath the third abdominal segment. When the furcula escapes from retinaculum, it swings downwards and hits the substrate, propelling the springtail into the air. The animal does not use this mechanism for ordinary locomotion, but only for escaping from predators or severe stress. One reason not to use the furcula for general locomotion other than to escape threats, is that its action is very unpredictable; when the furcula is released, the springtail is sent tumbling through the air on a practically arbitrary traject ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telson
The telson () is the posterior-most division of the body of an arthropod. Depending on the definition, the telson is either considered to be the final segment of the arthropod body, or an additional division that is not a true segment on account of not arising in the embryo from teloblast areas as other segments. It never carries any appendages, but a forked "tail" called the caudal furca may be present. The shape and composition of the telson differs between arthropod groups. Crustaceans In lobsters, shrimp and other decapods, the telson, along with the uropods, forms the tail fan. This is used as a paddle in the caridoid escape reaction ("lobstering"), whereby an alarmed animal rapidly flexes its tail, causing it to dart backwards. Krill can reach speeds of over 60 cm per second by this means. The trigger time to optical stimulus is, in spite of the low temperatures, only 55 milliseconds. In the Isopoda and Tanaidacea (superorder Peracarida), the last abdominal b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Furcula
The (Latin for "little fork") or wishbone is a forked bone found in most birds and some species of non-avian dinosaurs, and is formed by the fusion of the two pink clavicles. In birds, its primary function is in the strengthening of the thoracic skeleton to withstand the rigors of flight. In birds The furcula works as a strut between a bird's shoulders, and articulates to each of the bird's scapulae. In conjunction with the coracoid and the scapula, it forms a unique structure called the triosseal canal, which houses a strong tendon that connects the supracoracoideus muscles to the humerus. This system is responsible for lifting the wings during the recovery stroke. As the thorax is compressed by the flight muscles during downstroke, the upper ends of the furcula spread apart, expanding by as much as 50% of its resting width, and then contracts. X-ray films of starlings in flight have shown that in addition to strengthening the thorax, the furcula acts like a spring in the pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Furcula (moth)
''Furcula'' is a genus of moths of the family Notodontidae. The genus was described by Jean-Baptiste Lamarck in 1816. Species *''Furcula bicuspis ''Furcula bicuspis'', the alder kitten, is a moth of the family Notodontidae. The species was first described by Moritz Balthasar Borkhausen in 1790. It is found in most of the Palearctic realm. The wingspan is 30–35 mm. The moths are o ...'' (Borkhausen, 1790) *'' Furcula furcula'' (Clerck, 1759) *'' Furcula bifida'' (Brahm, 1787) *'' Furcula aeruginosa'' *'' Furcula tibetana'' Schintlmeister, 1998 *'' Furcula nicetia'' (Schaus, 1928) *'' Furcula interrupta'' (Christoph, 1867) *'' Furcula borealis'' (Guérin-Méneville, 1832) (was treated as a subspecies of ''F. bicuspis'' for some time) *'' Furcula cinerea'' (Walker, 1865) *'' Furcula nivea'' (Neumoegen, 1891) *'' Furcula occidentalis'' (Lintner, 1878) (was treated as a subspecies of ''F. furcula'' for some time) *'' Furcula scolopendrina'' (Boisduval, 1869) *'' Furcula mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forked Cross
A forked cross, is a Gothic cross in the form of the letter Y that is also known as a crucifixus dolorosus, furca, ypsilon cross, Y-cross, robber's cross or thief's cross. by Nikolas Davies and Erkki Jokiniemi, 2008. Retrieved 6 Jan 2014. According to recent research, the forked cross emerged under the influence of the in the late 13th or early 14th century and is especially common in the German |
Furca (punishment)
A cross is a geometrical figure consisting of two intersecting lines or bars, usually perpendicular to each other. The lines usually run vertically and horizontally. A cross of oblique lines, in the shape of the Latin letter X, is termed a saltire in heraldic terminology. The cross has been widely recognized as a symbol of Christianity from an early period.''Christianity: an introduction'' by Alister E. McGrath 2006 pages 321-323 However, the use of the cross as a religious symbol predates Christianity; in the ancient times it was a pagan religious symbol throughout Europe and western Asia. The effigy of a man hanging on a cross was set up in the fields to protect the crops. It often appeared in conjunction with the female-genital circle or oval, to signify the sacred marriage, as in Egyptian amule ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Furcas
In demonology, Furcas (also spelled Forcas) is a Knight of Hell (the rank of Knight is unique to him), and rules 20 legions of demons.Foras Esoteric Archives He teaches Philosophy, ( to some authors), Rhetoric, , |
Sarcina
The ''sarcina'' was the marching pack carried by Roman legionaries The Roman legion ( la, legiō, ) was the largest military unit of the Roman army, composed of 5,200 infantry and 300 equites (cavalry) in the period of the Roman Republic (509 BC–27 BC) and of 5,600 infantry and 200 auxilia in the period of t ..., the heavy infantry of the Roman legions. Most of a legionary's equipment other than his arms and armour would, in early times, have been consigned to a Train (military), baggage train and borne by mules and carts. However, following Marian reforms, the reforms of the Roman general Gaius Marius, the soldiers were expected to carry much of their rations and equipment themselves. This was done to reduce the size of the baggage train and increase the mobility of the army by allowing the soldiers to move strategically (i.e., quickly) independently of the train. Such was the load of the soldiers that they became known as "Marius' Mules". The appearance of the marc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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