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A revised terminology for the pharyngeal arches and the arch arteries
Journal of Anatomy, 2023 AbstractThe pharyngeal arches are a series of bulges found on the lateral surface of the head of vertebrate embryos. In humans, and other amniotes, there are five pharyngeal arches and traditionally these have been labelled from cranial to caudal—1, 2, 3, 4 and 6. This numbering is odd—there is no ‘5’. Two reasons have been given for this.
Anthony Graham +4 more
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Landscape Arch, Delicate Arch, and Double Arch in Arches National Park, Southeastern Utah
Geosites, 2020 Arches National Park in southeastern Utah has the greatest concentration of natural rock arches in the world. The park is located in a geologic region called the Paradox fold and fault belt in the northern Paradox Basin and showcases spectacular and classic Colorado Plateau geology with its colorful sedimentary rocks, ancient sand dunes, cliffs, domes,
Jr. Chidsey Thomas, Grant C. Willis
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Expansion with transpalatal arch or continuous arch mechanics
American Journal of Orthodontics and Dentofacial Orthopedics, 2020 This study aimed to compare the 3-dimensional force system produced by transpalatal arch (TPA) mechanics with that produced by a continuous arch (CA) on the expansion of maxillary first molars.A patient's model with 2 molars in 4-mm crossbite had orthodontic appliances bonded to all teeth.
Ledra, Ingrid Muller +2 more
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Segmented arch or continuous arch technique? A rational approach [PDF]
Dental Press Journal of Orthodontics, 2014 This study aims at revising the biomechanical principles of the segmented archwire technique as well as describing the clinical conditions in which the rational use of scientific biomechanics is essential to optimize orthodontic treatment and reduce the side effects produced by the straight wire technique.
Caldas, Sergei Godeiro Fernandes Rabelo +3 more
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International Journal of Orthodontia, Oral Surgery and Radiography, 1922 n ...
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Aortic arch malformations [PDF]
Pediatric Radiology, 2010 Although anomalies of the aortic arch and its branches are relatively uncommon malformations, they are often associated with congenital heart disease. Isolated lesions may be clinically significant when the airways are compromised by a vascular ring.
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, 2018 Honorific arch built in Rome to celebrate the new emperor Constantine, after his victory over Maxentius at the Battle of the Milvian Bridge (312 CE).
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Proceedings of the Royal Society of EdinburghDr Traill stated, as the result of a careful examination of the passages in ancient authors, supposed to prove the early use of arches by the Greeks, that we must abandon all hope of solving this disputed point, by a reference to those authors; and he instanced the danger of inferences from such uncertain data, by comparing the description of the ...
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